Talvez debería tentar con algunhas variantes ortográficas:
"program comprehension" » "literal comprehension" (Expandir procura)
"program implement" » "program improvements" (Expandir procura)
"program implementededededinged" » "program improvementsededededinged" (Expandir procura)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("program implement") OR ((("program comprehension") OR ("program implementededededinged"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"program implement\") OR (((\"program comprehension\") OR (\"program implementededededinged\"))))*".
• Removing quotes may allow a broader search: (( program implement ) OR ((( program comprehension ) OR ( program implementededededinged ))))*.