Perhaps you should try some spelling variations:
"based virtualization using computer program" » "based visualization using computer program" (Expand search), "and virtualization using computer program" (Expand search), "the virtualization using computer program" (Expand search), "based virtualization pushing computer program" (Expand search), "based virtualization in computer program" (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: (("advanced modulation java computer program") OR ("based virtualization using computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced modulation java computer program\") OR (\"based virtualization using computer program\"))".
• Removing quotes may allow a broader search: (( advanced modulation java computer program ) OR ( based virtualization using computer program )).
• Adding a wildcard symbol may retrieve word variants: (("advanced modulation java computer program") OR ("based virtualization using computer program"))*.