Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
pacific dimensions » pacific dimension, basic dimensions, pacific division
basics dimensions » basic dimensions, physics dimensions, based dimensions
causes tree » causal tree, causes cures, causes bruce

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

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