Perhaps you should try some spelling variations:
"coder coder math textbook program" » "coder coder the textbook program" (Expand search), "coder coder and textbook program" (Expand search), "coder decoder math textbook program" (Expand search), "code code math textbook program" (Expand search), "decoder codec math textbook program" (Expand search), "coder modern math textbook program" (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 math textbook program") OR ("api python python python programming"))~.
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• Removing quotes may allow a broader search: (( coder coder math textbook program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder math textbook program") OR ("api python python python programming"))*.