Perhaps you should try some spelling variations:
"using computational methods comparing problem" » "using computational model comparing problem" (Expand search), "and computational methods comparing problem" (Expand search), "using computational methods comparison problem" (Expand search), "using computational methods comparative problem" (Expand search), "using computational method comparison problem" (Expand search), "using computational methods covering problem" (Expand search), "using computational methods coloring problem" (Expand search), "using computational methods coping problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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 computational methods comparing problem\") OR (\"using coding python python programming\"))~".
• Removing quotes may allow a broader search: (( using computational methods comparing problem ) OR ( using coding python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("using computational methods comparing problem") OR ("using coding python python programming"))*.