Perhaps you should try some spelling variations:
"based computation in coverage problem" » "based computational in coverage problem" (Expand search), "based competition in coverage problem" (Expand search), "based compilation in coverage problem" (Expand search), "based computation in covering problem" (Expand search), "based computation in covering problems" (Expand search), "based computation in coverage from" (Expand search), "based computation and coverage problem" (Expand search), "based computation of coverage problem" (Expand search), "based imputation in coverage problem" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using 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 coverage problem\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( based computation in coverage problem ) OR ( using using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computation in coverage problem") OR ("using using python python programming"))*.