Perhaps you should try some spelling variations:
"coder model using code coverage" » "coder model using care coverage" (Expand search), "coder model using and coverage" (Expand search), "coder model using the coverage" (Expand search), "cover model using code coverage" (Expand search), "decoder model using code coverage" (Expand search), "copper model using code coverage" (Expand search), "coder model using cone coverage" (Expand search), "coder model using co coverage" (Expand search), "coder model using cold coverage" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ 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: (("coder model using code coverage") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder model using code coverage\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( coder model using code coverage ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder model using code coverage") OR ("in python python python programming"))*.