Perhaps you should try some spelling variations:
information tracking » information teaching, information taking, information extracting
set diffusion » jet diffusion, heat diffusion, ict diffusion
array sharing » arrays bearing, array imaging, way sharing
tracking set » tracking st, tracking stem, tracking best
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: information tracking set diffusion ((((array string) or (array sharing))) or (array format))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information tracking set diffusion ((((array string) OR (array sharing))) OR (array format)).
• Adding a wildcard symbol may retrieve word variants: information tracking set diffusion ((((array string) or (array sharing))) or (array format))*.