Perhaps you should try some spelling variations:
"advanced computational and computer program" » "and computational and computer program" (Expand search), "based computational and computer program" (Expand search), "advanced computational fluid computer program" (Expand search), "advanced computational _ computer program" (Expand search)
"advanced modulation from computer program" » "advanced calculation from computer program" (Expand search), "advanced oxidation from computer program" (Expand search), "advanced modulation of computer program" (Expand search), "advanced modulation on computer program" (Expand search), "advanced modulation pwm computer program" (Expand search), "advanced modulation scrum computer program" (Expand search), "advanced modulation from complex program" (Expand search), "advanced modulation beam 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 computational and computer program") OR ("advanced modulation from computer program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced computational and computer program\") OR (\"advanced modulation from computer program\"))*".
• Removing quotes may allow a broader search: (( advanced computational and computer program ) OR ( advanced modulation from computer program ))*.