Perhaps you should try some spelling variations:
"coder coder on planning problem" » "coder coder on packing problem" (Expand search), "coder coder on planning process" (Expand search), "coder decoder on planning problem" (Expand search), "code code on planning problem" (Expand search), "decoder codec on planning problem" (Expand search), "coder coder in planning problem" (Expand search), "coder coder town planning problem" (Expand search), "coder coder land planning problem" (Expand search), "coder code on planning problem" (Expand search), "coder codes on planning problem" (Expand search), "coder powder on planning 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 on planning problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder on planning problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder on planning problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder on planning problem") OR ("api python python python programming"))*.