Perhaps you should try some spelling variations:
"coder coder basic units problems" » "coder coder basic unit problem" (Expand search), "coder coder basic its problems" (Expand search), "coder coder basic andes problems" (Expand search), "coder decoder basic units problems" (Expand search), "code code basic units problems" (Expand search), "decoder codec basic units problems" (Expand search), "coder model basic units problems" (Expand search), "coder under basic units problems" (Expand search), "coder coder basic unit 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)

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