Perhaps you should try some spelling variations:
"coder coder coverage _ program" » "coder code coverage _ program" (Expand search), "coder cancer coverage _ program" (Expand search), "coder center coverage _ program" (Expand search), "coder decoder coverage _ program" (Expand search), "code code coverage _ program" (Expand search), "decoder codec coverage _ program" (Expand search)
"via pivo python python programming" » "via pivo pythons python programming" (Expand search), "via pivo piton python programming" (Expand search), "via pivo pitons python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "via pi3k 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 coder coverage _ program\") OR (\"via pivo python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder coverage _ program ) OR ( via pivo python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder coverage _ program") OR ("via pivo python python programming"))*.