Perhaps you should try some spelling variations:
"coder coder project scheduling problem" » "coder coder production scheduling problem" (Expand search), "coder code project scheduling problem" (Expand search), "coder modern project scheduling problem" (Expand search), "coder condor project scheduling problem" (Expand search), "coder decoder project scheduling problem" (Expand search), "code code project scheduling problem" (Expand search), "decoder codec project scheduling problem" (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 project scheduling problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder project scheduling problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder project scheduling problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder project scheduling problem") OR ("api python python python programming"))*.