Perhaps you should try some spelling variations:
"coder coder coverage on posters" » "coder code coverage on posters" (Expand search), "coder cancer coverage on posters" (Expand search), "coder center coverage on posters" (Expand search), "coder decoder coverage on posters" (Expand search), "code code coverage on posters" (Expand search), "decoder codec coverage on posters" (Expand search), "coder coder coverage of posters" (Expand search), "coder coder coverage in posters" (Expand search), "coder coder coverage and posters" (Expand search), "coder coder coverage on porter's" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons 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 coder coverage on posters") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coverage on posters\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coverage on posters ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coverage on posters") OR ("api python python python programming"))*.