Perhaps you should try some spelling variations:
formation implementation » formulation implementation, education implementation, transformation implementation
implementation case » implementation a, implementation _
case extension » base extension, casl extension, based extension
array string » array strong, arrays strings, array sharing
array fermi » 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: formation implementation case extension ((((array string) or (array fermi))) or (array format))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: formation implementation case extension ((((array string) OR (array fermi))) OR (array format)).
• Adding a wildcard symbol may retrieve word variants: formation implementation case extension ((((array string) or (array fermi))) or (array format))*.