Perhaps you should try some spelling variations:
dimensions conclusion » dimensions conclusions, dimension conclusions, directions conclusion
conversation based » conversion based, conversation made, conversation david
conversation basic » conversations basics, conversacion basica, convection basic
conclusion seven » conclusion eleven, conclusion some, conclusion susan

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication ((conversation based) or (conversation basic)) dimensions conclusion seven~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication ((conversation based) OR (conversation basic)) dimensions conclusion seven.
• Adding a wildcard symbol may retrieve word variants: communication ((conversation based) or (conversation basic)) dimensions conclusion seven*.