Talvez debería tentar con algunhas variantes ortográficas:
communication conversion » communication conversation, communications convention, communication cohesion
conversion methods » conversion method, inversion methods, inversion method
session based » decision based, regression based, expression based
vision » division

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication conversion methods ((((session based) or (fusion based))) or (vision based)) life~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication conversion methods ((((session based) OR (fusion based))) OR (vision based)) life.
• Adding a wildcard symbol may retrieve word variants: communication conversion methods ((((session based) or (fusion based))) or (vision based)) life*.