Perhaps you should try some spelling variations:
"coder coder recognition validation problem" » "coder coder recognition variation problem" (Expand search), "coder coder recognition calibration problem" (Expand search), "coder coder recognition realization problem" (Expand search), "coder border recognition validation problem" (Expand search), "coder mode recognition validation problem" (Expand search), "coder under recognition validation problem" (Expand search), "coder decoder recognition validation problem" (Expand search), "code code recognition validation problem" (Expand search), "decoder codec recognition validation 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 recognition validation problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder recognition validation problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder recognition validation problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder recognition validation problem") OR ("api python python python programming"))*.