Talvez debería tentar con algunhas variantes ortográficas:
programming designation » programming designing, programming negation, programming discrimination
programming recursion » programming decision, programming session, programming decisions
integration function » integration functions, integration functional, integration dysfunction

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: integration function ((programming recursion) OR (programming designation)) basic study~.
• Adding a wildcard symbol may retrieve word variants: integration function ((programming recursion) or (programming designation)) basic study*.