Perhaps you should try some spelling variations:
"based computational and computer program" » "and computational and computer program" (Expand search), "by computational and computer program" (Expand search), "based computational fluid computer program" (Expand search), "based computational _ computer program" (Expand search)
"advanced validation based coding program" » "advanced oxidation based coding program" (Expand search), "advanced glication based coding program" (Expand search), "advanced visualization based coding program" (Expand search), "advanced validation and coding program" (Expand search), "advanced validation by coding program" (Expand search), "advanced validity based coding program" (Expand search), "advanced validation based cloning program" (Expand search), "advanced validation based loading program" (Expand search), "advanced validation based cooling programs" (Expand search), "advanced validation based costing program" (Expand search), "advanced validation based coating program" (Expand search), "advanced validation based coatings program" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational and computer program\") OR (\"advanced validation based coding program\"))~".
• Removing quotes may allow a broader search: (( based computational and computer program ) OR ( advanced validation based coding program ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computational and computer program") OR ("advanced validation based coding program"))*.