Perhaps you should try some spelling variations:
"using computation using activity problem" » "using computational using activity problem" (Expand search), "using imputation using activity problem" (Expand search), "using compilation using activity problem" (Expand search), "using computations using activity problem" (Expand search), "using computation in activity problem" (Expand search), "using composition using activity problem" (Expand search), "using computation using activity profiles" (Expand search), "using computation using activity program" (Expand search), "using computation using activity profile" (Expand search), "using computation fishing activity problem" (Expand search), "using computation guiding activity problem" (Expand search), "using computation mining activity problem" (Expand search)
"using python python python programming" » "using pythons python python programming" (Expand search), "using piton python python programming" (Expand search), "using pitons python python programming" (Expand search), "usando python python python programming" (Expand search), "in python 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 using activity problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation using activity problem\") OR (\"using python python python programming\"))".
• Removing quotes may allow a broader search: (( using computation using activity problem ) OR ( using python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using computation using activity problem") OR ("using python python python programming"))*.