Perhaps you should try some spelling variations:
"and complexation in coverage of" » "and completion in coverage of" (Expand search), "and complication in coverage of" (Expand search), "and complications in coverage of" (Expand search), "and complexation and coverage of" (Expand search), "and complexation of coverage of" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("and complexation in coverage of") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and complexation in coverage of\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( and complexation in coverage of ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("and complexation in coverage of") OR ("using coding python python programming"))*.