Perhaps you should try some spelling variations:
"coder coder coding optics teaching" » "coder coder coding genetics teaching" (Expand search), "coder coder coding physics teaching" (Expand search), "coder coder codigo optico teaching" (Expand search), "coder modern coding optics teaching" (Expand search), "coder color coding optics teaching" (Expand search), "coder odor coding optics teaching" (Expand search), "coder decoder coding optics teaching" (Expand search), "code code coding optics teaching" (Expand search), "decoder codec coding optics teaching" (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 coding optics teaching") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coding optics teaching\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coding optics teaching ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coding optics teaching") OR ("api python python python programming"))*.