Normally problem faced by developers after creating Search Page is how to Clear/ Reset Result Table when developer open search page first time or after search when developer redirecting back to same search page from any other page (say delete page or update page)

Add following Code in your Search page Controller where you have constructed your Query Region

import oracle.apps.fnd.framework.webui.beans.layout.OAQueryBean;
...

public void processRequest(OAPageContext pageContext, OAWebBean webBean)
{
 super.processRequest(pageContext, webBean);

 OAQueryBean queryBean = (OAQueryBean)webBean.findChildRecursive("QueryRN"); 
 // Here QueryRN is your Query Region Name as shown in following snap shot

 queryBean.clearSearchPersistenceCache(pageContext);
}