Perhaps you should try some spelling variations:
"using computation in rotating problems" » "using computational in rotating problems" (Expand search), "using imputation in rotating problems" (Expand search), "using compilation in rotating problems" (Expand search), "using computation in routing problems" (Expand search), "using computation in routing problem" (Expand search), "using computation in counting problems" (Expand search), "using computation and rotating problems" (Expand search), "using computation of rotating problems" (Expand search), "using computation _ rotating problems" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("using computation in rotating problems") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation in rotating problems\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( using computation in rotating problems ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computation in rotating problems") OR ("using coding python python programming"))*.