Perhaps you should try some spelling variations:
"coder code and coverage problem" » "coder code and covering problem" (Expand search), "coder code and cover problem" (Expand search), "coder code and covering problems" (Expand search), "code code and coverage problem" (Expand search), "modern code and coverage problem" (Expand search), "color code and coverage problem" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons 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: "((\"coder code and coverage problem\") OR (\"via python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code and coverage problem ) OR ( via python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code and coverage problem") OR ("via python python python programming"))*.