Perhaps you should try some spelling variations:
technical paper » technical papers
apis technical » apps technical, basics technical
api technical » mali technical, ii technical, i technical
iii technical » ii technical, 2 technical
world apis » world apps, world anis, world kpis

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 apis technical paper ) OR ( world ((api technical) OR (iii technical)) paper )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( world apis technical paper ) or ( world ((api technical) OR (iii technical)) paper ))".
• Adding a wildcard symbol may retrieve word variants: (( world apis technical paper ) or ( world ((api technical) OR (iii technical)) paper ))*.