Perhaps you should try some spelling variations:
"coder coder coverage control effect" » "coder code coverage control effect" (Expand search), "coder cancer coverage control effect" (Expand search), "coder center coverage control effect" (Expand search), "coder coder coverage control effects" (Expand search), "coder coder coverage content effect" (Expand search), "coder coder coverage context effect" (Expand search), "coder decoder coverage control effect" (Expand search), "code code coverage control effect" (Expand search), "decoder codec coverage control effect" (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), "rpa 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 coder coverage control effect") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coverage control effect\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder coverage control effect ) OR ( api python python python programming ))*.