My problem in the same as described here: http://productforums.google.com/forum/#!topic/chrome/HE7ak4y92YU

When I type a search in the chrome omnibox, after typing enfr [space] chrome replaces it by a search in the history and I end up googling my search prefixed by the keyword : for example, I end up googling "enfr former", instead of translating "former" from engligh into french.

(in my case, the search is the folowing name: enfr, keywoard: enfr, search: http://translate.google.fr/#en/fr/%s in the other search engines options)

Chrome version: 21.0.1180.89

How do I restore the normal behavior (searching on the specified search engine instead of the default search) ?

Update: I have seen that clearing browsing data while I did the search fixes the problem. But I am not sure if it wont reapear.