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