Perhaps you should try some spelling variations:
"coder coder theory complex problem" » "coder coder theory complex problems" (Expand search), "coder coder theory complexes problem" (Expand search), "coder coder theory coupled problem" (Expand search), "coder coder theory complexity problem" (Expand search), "coder code theory complex problem" (Expand search), "coder codes theory complex problem" (Expand search), "coder modern theory complex problem" (Expand search), "coder decoder theory complex problem" (Expand search), "code code theory complex problem" (Expand search), "decoder codec theory complex 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)

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 theory complex problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder theory complex problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder theory complex problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder theory complex problem") OR ("api python python python programming"))*.