Perhaps you should try some spelling variations:
"by computational and computer program" » "by computational fluid computer program" (Expand search), "_ computational and computer program" (Expand search), "and computational and computer program" (Expand search), "by computational _ computer program" (Expand search)
"using coding opencv python programming" » "using using opencv python programming" (Expand search), "using codigo opencl python programming" (Expand search), "using coding pnc python programming" (Expand search), "using coping opencv python programming" (Expand search), "using coating opencv python programming" (Expand search), "using cooking opencv python programming" (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: (("by computational and computer program") OR ("using coding opencv python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"by computational and computer program\") OR (\"using coding opencv python programming\"))".
• Removing quotes may allow a broader search: (( by computational and computer program ) OR ( using coding opencv python programming )).
• Adding a wildcard symbol may retrieve word variants: (("by computational and computer program") OR ("using coding opencv python programming"))*.