Perhaps you should try some spelling variations:
apis technical » apps technical, basics technical, actions technical
gis technical » aws technical, acids technical, apps technical
api technical » mali technical, ii technical, iii technical
world api » world ai, world app, world april

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 ((gis technical) OR (apis technical)) paper ) OR ( world api technical papers )).
• Adding a wildcard symbol may retrieve word variants: (( world ((gis technical) or (apis technical)) paper ) or ( world api technical papers ))*.