Perhaps you should try some spelling variations:
"based computation in covariation problem" » "based computation in variation problem" (Expand search), "based computation in nonvariational problem" (Expand search), "based computation in coordination problem" (Expand search), "based computational in covariation problem" (Expand search), "based competition in covariation problem" (Expand search), "based compilation in covariation problem" (Expand search), "based computation and covariation problem" (Expand search), "based computation of covariation problem" (Expand search), "based imputation in covariation problem" (Expand search), "based computation man covariation problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking python python programming" (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 computation in covariation problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( based computation in covariation problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation in covariation problem") OR ("using coding python python programming"))*.