Perhaps you should try some spelling variations:
"based computation in drop problem" » "based computational in drop problem" (Expand search), "based competition in drop problem" (Expand search), "based compilation in drop problem" (Expand search), "based computation and drop problem" (Expand search), "based computation of drop problem" (Expand search), "based imputation in drop problem" (Expand search), "based computation in shop problem" (Expand search), "based computation in up problem" (Expand search), "based computation in drip 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: "((\"based computation in drop problem\") OR (\"using python python python programming\"))~".
• Removing quotes may allow a broader search: (( based computation in drop problem ) OR ( using python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation in drop problem") OR ("using python python python programming"))*.