Perhaps you should try some spelling variations:
item extensions » stem extension, shmem extensions, new extensions
array profiling » array processing, microarray profiling
array formulas » area formulas, harrop formulas, array format
problem item » problem its, problem it's, problem stemma
array string » array strong, arrays strings, array sharing
creative » creating, create

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "creative problem item extensions ((array formulas) OR (((array string) OR (array profiling))))~".
• Adding a wildcard symbol may retrieve word variants: creative problem item extensions ((array formulas) OR (((array string) OR (array profiling))))*.