Perhaps you should try some spelling variations:
"using computation in inverse problem" » "using computational in inverse problem" (Expand search), "using imputation in inverse problem" (Expand search), "using compilation in inverse problem" (Expand search), "using computation and inverse problem" (Expand search), "using computation of inverse problem" (Expand search), "using computation an inverse 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using computation in inverse problem\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( using computation in inverse problem ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computation in inverse problem") OR ("using python python python programming"))*.