Perhaps you should try some spelling variations:
information ground » information grounds, information group, information grid
source diffusion » resource diffusion, surface diffusion, double diffusion
array profiling » array processing, microarray profiling
array formulas » area formulas, harrop formulas, array format
ground source » sound source, ground surface, sound sources
array string » array strong, arrays strings, array sharing

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

• Performing a fuzzy search may retrieve terms with similar spellings: information ground source diffusion ((((array profiling) or (array string))) or (array formulas))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information ground source diffusion ((((array profiling) OR (array string))) OR (array formulas)).
• Adding a wildcard symbol may retrieve word variants: information ground source diffusion ((((array profiling) or (array string))) or (array formulas))*.