Perhaps you should try some spelling variations:
"and computational opencv computer program" » "and computacional opencv computer program" (Expand search), "and computacional open computer program" (Expand search), "and computational science computer program" (Expand search), "_ computational opencv computer program" (Expand search)
"using imputation from python programming" » "using mutation from python programming" (Expand search), "testing imputation from python programming" (Expand search), "using computational from python programming" (Expand search), "using amputation from python programming" (Expand search), "using computation from python programming" (Expand search), "using imputation from pathogen programming" (Expand search), "using imputation from anthony 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: (("and computational opencv computer program") OR ("using imputation from python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and computational opencv computer program\") OR (\"using imputation from python programming\"))".
• Removing quotes may allow a broader search: (( and computational opencv computer program ) OR ( using imputation from python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and computational opencv computer program") OR ("using imputation from python programming"))*.