Perhaps you should try some spelling variations:
communication fast » telecommunication fast
fast extensor » first extensor, fast extended
array sharing » arrays bearing, array imaging, way sharing
array arcing » array forming, array probing, array using
array string » array strong, arrays strings, array forming

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

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