Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation center » documentation centres, documentation fast
center dispersion » cluster dispersion, matter dispersion, water dispersion
based them » based three, based thin, based team
based term » based test, based text, based thermal

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 center dispersion ((based them) OR (based term))~.
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• Adding a wildcard symbol may retrieve word variants: communication documentation center dispersion ((based them) OR (based term))*.