Perhaps you should try some spelling variations:
api documentation » a documentation, care documentation, data documentation
apa documentation » data documentation, a documentation, care documentation
scale users » scale use, male users, scale rfers
scale user » scale use, scale laser, scales used
3 curtan » _ curtain, _ cartan, _ curtin

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: ((scale user) OR (scale users)) ((api documentation) OR (apa documentation)) 3 curtan-metragem~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((scale user) OR (scale users)) ((api documentation) or (apa documentation)) 3 curtan-metragem~".
• Adding a wildcard symbol may retrieve word variants: ((scale user) OR (scale users)) ((api documentation) or (apa documentation)) 3 curtan-metragem*.