Perhaps you should try some spelling variations:
formation process » formation processes, creation process, fermentation process
class dimensions » across dimensions, classes dimension, class extensions
process class » process claims, process case, process cases
array probing » arrays probing, assay probing, array profiling
array arcing » array forming, array sharing, array using

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: formation process class dimensions ((array format) OR (((array arcing) OR (array probing))))~.
• Adding a wildcard symbol may retrieve word variants: formation process class dimensions ((array format) or (((array arcing) or (array probing))))*.