Perhaps you should try some spelling variations:
"coder coder smooth rational problems" » "coder coder smooth fractional problems" (Expand search), "coder coder smooth relational problems" (Expand search), "coder coder smooth national problem" (Expand search), "coder after smooth rational problems" (Expand search), "coder decoder smooth rational problems" (Expand search), "code code smooth rational problems" (Expand search), "decoder codec smooth rational problems" (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), "manim 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 smooth rational problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder smooth rational problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder smooth rational problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder smooth rational problems") OR ("api python python python programming"))*.