Perhaps you should try some spelling variations:
communication formation » communication information, communications information, communication foundation
higher dimensions » higher dimensional, high dimensional
formation higher » formation high, deformations higher, formation other
arrays string » arrays strings, arrays sorting, arrays swarming
array string » array strong, arrays strings, array sharing
array long » array along, arrays long, array strong

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication formation higher dimensions ((array long) or (((array string) or (arrays string))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication formation higher dimensions ((array long) OR (((array string) OR (arrays string)))).
• Adding a wildcard symbol may retrieve word variants: communication formation higher dimensions ((array long) or (((array string) or (arrays string))))*.