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