Perhaps you should try some spelling variations:
class extensions » galois extensions, its extensions, brand extensions
array profiling » array processing, microarray profiling
create problem » creative problem, great problem, creative problems
array formulas » area formulas, harrop formulas, array format
problem class » problems class, problem case, problem claude
array string » array strong, arrays strings, array sharing

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

• If you are trying to use Boolean operators, they must be ALL CAPS: create problem class extensions ((array formulas) OR (((array string) OR (array profiling))))~.
• Adding a wildcard symbol may retrieve word variants: create problem class extensions ((array formulas) or (((array string) or (array profiling))))*.