Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
basic dimensions » pacific dimensions, design dimensions, family dimensions
based dimension » based dispersion, based extension, based diffusion
regression age » regression agent, regression case, regression arem

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "communication documentation ((basic dimensions) OR (based dimension)) regression age~".
• Adding a wildcard symbol may retrieve word variants: communication documentation ((basic dimensions) OR (based dimension)) regression age*.