Perhaps you should try some spelling variations:
"and computational and computer program" » "_ computational and computer program" (Expand search), "and computational fluid computer program" (Expand search), "and computational _ computer program" (Expand search)
"based computation using computing program" » "based computational using computing program" (Expand search), "based competition using computing program" (Expand search), "based compilation using computing program" (Expand search), "based computations using computing program" (Expand search), "based computation in computing program" (Expand search), "based composition using computing program" (Expand search), "based computation using consulting program" (Expand search), "based computation using computador program" (Expand search), "based computation using computer programs" (Expand search), "based computation using competing program" (Expand search), "based computation mining computing program" (Expand search), "based computation using conducting program" (Expand search)

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

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