Perhaps you should try some spelling variations:
communication telecommunication » communications telecommunications, communication communication, communications communication
basic dimensions » based dimension, pacific dimensions, design dimensions
based extraction » based interaction, phase extraction, based education
using spaces » using space, using species, using spokes

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication telecommunication ((basic dimensions) or (based extraction)) using spaces~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication telecommunication ((basic dimensions) OR (based extraction)) using spaces.
• Adding a wildcard symbol may retrieve word variants: communication telecommunication ((basic dimensions) or (based extraction)) using spaces*.