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