Perhaps you should try some spelling variations:
"using computational _ computing program" » "and computational _ computing program" (Expand search), "using computational _ consulting program" (Expand search), "using computational _ computador program" (Expand search), "using computational _ computer programs" (Expand search)
"advanced modulation java computer program" » "advanced calculation java computer program" (Expand search), "advanced oxidation java computer program" (Expand search), "advanced modulation banda computer program" (Expand search), "advanced modulation and computer program" (Expand search), "advanced modulation at 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: (("using computational _ computing program") OR ("advanced modulation java computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computational _ computing program\") OR (\"advanced modulation java computer program\"))".
• Removing quotes may allow a broader search: (( using computational _ computing program ) OR ( advanced modulation java computer program )).
• Adding a wildcard symbol may retrieve word variants: (("using computational _ computing program") OR ("advanced modulation java computer program"))*.