Talvez debería tentar con algunhas variantes ortográficas:
"program complementing" » "program commencing" (Expandir procura), "program comprehension" (Expandir procura)
"general improvements" » "genetic improvement" (Expandir procura), "gradual improvement" (Expandir procura), "greater improvements" (Expandir procura)
"program implementededers" » "program implementedsteps" (Expandir procura), "program implementers" (Expandir procura)

Try widening your search to Todos os campos.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("program implementededers") OR ("general improvements"))) OR ("program complementing"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"program implementededers\") OR (\"general improvements\"))) OR (\"program complementing\"))".
• Removing quotes may allow a broader search: (((( program implementededers ) OR ( general improvements ))) OR ( program complementing )).
• Adding a wildcard symbol may retrieve word variants: (((("program implementededers") OR ("general improvements"))) OR ("program complementing"))*.