Perhaps you should try some spelling variations:
"coder coder functional theory text" » "coder modern functional theory text" (Expand search), "coder border functional theory text" (Expand search), "coder order functional theory text" (Expand search), "coder decoder functional theory text" (Expand search), "code code functional theory text" (Expand search), "decoder codec functional theory text" (Expand search), "coder coder functional theory test" (Expand search), "coder coder functional theory tests" (Expand search), "coder coder functional theory that" (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 functional theory text") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder functional theory text\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder functional theory text ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder functional theory text") OR ("api python python python programming"))*.