Perhaps you should try some spelling variations:
communications connections » communication connection, communication collections, communication connecting
communication conversion » communication conversation, communications convention, communication cohesion
dimension slides » dimension codes, dimension video, dimensions des
fast dimension » first dimension, hat dimension, lost dimension
slides file » slides five, slides titles

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) or (communications connections)) fast dimension slides file~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((communication conversion) OR (communications connections)) fast dimension slides file.
• Adding a wildcard symbol may retrieve word variants: ((communication conversion) or (communications connections)) fast dimension slides file*.