Perhaps you should try some spelling variations:
communication documentation » communication communication, communication conversation
communication foundation » communication education, communication communication, communication information
coast division » code division, 1st division, first division
division date » division water, division de, division adat
date model » data model, rate model, fate model

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) OR (communication foundation)) coast division date model~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((communication documentation) OR (communication foundation)) coast division date model".
• Adding a wildcard symbol may retrieve word variants: ((communication documentation) OR (communication foundation)) coast division date model*.