Perhaps you should try some spelling variations:
"based computational and computational program" » "by computational and computational program" (Expand search), "based computational fluid computational program" (Expand search), "based computational _ computational program" (Expand search)
"using computation java computer program" » "using computational java computer program" (Expand search), "using imputation java computer program" (Expand search), "using compilation java computer program" (Expand search), "using computacional java computer program" (Expand search), "using computation and computer program" (Expand search), "using computation an computer 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: (("based computational and computational program") OR ("using computation java computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational and computational program\") OR (\"using computation java computer program\"))".
• Removing quotes may allow a broader search: (( based computational and computational program ) OR ( using computation java computer program )).
• Adding a wildcard symbol may retrieve word variants: (("based computational and computational program") OR ("using computation java computer program"))*.