Perhaps you should try some spelling variations:
"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)
"coder coding time scheduling problem" » "modern coding time scheduling problem" (Expand search), "color coding time scheduling problem" (Expand search), "odor coding time scheduling problem" (Expand search), "coder holding time scheduling problem" (Expand search), "coder loading time scheduling problem" (Expand search), "coder coding the scheduling problem" (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 coding time scheduling problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding time scheduling problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding time scheduling problem") OR ("api python python python programming"))*.