Perhaps you should try some spelling variations:
"coder coder fourier based program" » "coder modal fourier based program" (Expand search), "coder layer fourier based program" (Expand search), "coder pade fourier based program" (Expand search), "coder coder fourier bessel program" (Expand search), "coder coder carrier based program" (Expand search), "coder coder fourier and program" (Expand search), "coder decoder fourier based program" (Expand search), "code code fourier based program" (Expand search), "decoder codec fourier based 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 fourier based program") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder fourier based program\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder fourier based program ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder fourier based program") OR ("api python python python programming"))*.