well dude when u r using the advanced search techniques just be carefull ..
since there is no way to stop spamming n other stuffs be carefull in choosing the right link or else u will be navigated to entirely different n crap stuff.
there r some more i would like to share:
if u r seraching somehting in particular sites then u can use
1. inurl "the url link" "the word to be searched "
well i am not sure how far its accurate but works most of the time.