Perhaps you should try some spelling variations:
basics techniques » basic techniques, basic technique, based techniques
techniques paper » techniques upper, techniques peter, techniques pattern
anis technical » apis technical, acids technical, banks technical
world basics » world basic, word basics, world brics
world anis » world angus, world ai, world anti

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( world basics techniques paper ) OR ( world anis technical papers ))*.