EDIT: I'd like to change this title to:

How to STOP Google's manipulation of Google search engine presented to general public?

I am frequently googling and more and more frequently bump when searching by one software product I am given instead the results on Google's own products.

For ex., if I google by keyword

• keycaptcha
  for the "Past 24 hours" (after clicking on "Show search tools" --> "Past 24 hours" on the left sidebar of a browser) I am getting the Google's search results show only results on reCAPTCHA.

Image uploaded later:

Though, if confine keycaptcha in quotes the results are "correct" (well, kind of since they are still distorted in comparison with other search engines).
I checked this during few months from different domains at different ISPs, different operating systems and from a dozen of browsers.
The results are the same.

Why is it and how can it be possibly corrected?

My related posts:

• "How Gmail spam filter works?"
• IP adresses blacklisting

Update:
It is impossible for me to directly start using google.com as I am always redirected to google.ru (from google.com) by my ip-address "auto-detect location" google's "convenience".
The google's help tells that it is impossible to switch off my location auto-detection because it is very helpful feature.

There is a work-around to use google.com/ncr (to get google.com)
(?anybody know what does it mean)
to prevent redirection from google.com but even.
But all results are exactly the same

OK, I can search by quoted "keycaptcha", I am already accustomed to these google's quirks, but the question arises why the heck to burn time promoting someone's product if GOOGLE uses other product brands for showing its own interests/brands (reCAPTCHA) instead and what can be done with it?
The general user will not understand that he was cheated and just will pick up the first (wrong) results

Update2:
Note that this googling behaviour:

• is independent on whether I am logged-in (or log-out-ed of) a google account, which account, on browser (I tried Opera, Chrome, FireFox, IE of different versions, Safari), OS or even domain;
• there are many such cases but I just targeted one concrete restricted example speciffically to to prevent wandering between unrelated details and peculiarities;

@Michael,
first it is not true and this text contains 2 links for real and significant results..
I also wrote that this is just one concrete example from many and based on many-month exp.

These distortions happen upon clicking on:

• Past 24 hours,
• Past week,
• Past month,
• Past year
• in many other keywords, occasions/configurations of searches, etc.

Second, the absence of the results is the result and there is no point to sneakingly substitute it by another unsolicited one. It is the definition of spam and scam.

3d, the question is not abt workarounds like how to write search queries or use another searching engines.

The question is how to straighten the googling's results in order to stop disorienting general public about.

Update:
I could not understand:
nobody reproduces the described by me behavior
(i.e. when I click "Past 24 hours" link in google search searching for keycaptcha,
the presented results are only on reCAPTCHA presented)?

Update:
And for the "Past week":