Perhaps you should try some spelling variations:
"based computation of modeling problem" » "based computational of modeling problem" (Expand search), "based competition of modeling problem" (Expand search), "based compilation of modeling problem" (Expand search), "based computation of modeling problems" (Expand search), "based computation of modelling problem" (Expand search), "based computation of modelling problems" (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: (("based computation of modeling problem") OR ("using python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computation of modeling problem\") OR (\"using python python python programming\"))".
• Removing quotes may allow a broader search: (( based computation of modeling problem ) OR ( using python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based computation of modeling problem") OR ("using python python python programming"))*.