Perhaps you should try some spelling variations:
"coder coder coverage control doi" » "coder code coverage control doi" (Expand search), "coder cancer coverage control doi" (Expand search), "coder center coverage control doi" (Expand search), "coder decoder coverage control doi" (Expand search), "code code coverage control doi" (Expand search), "decoder codec coverage control doi" (Expand search), "coder coder coverage control del" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coverage control doi\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder coverage control doi ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder coverage control doi") OR ("api python python python programming"))*.