Perhaps you should try some spelling variations:
"coder coder bound optimization problems" » "coder coder boundary optimization problems" (Expand search), "coder coder bundle optimization problems" (Expand search), "coder coder and optimization problems" (Expand search), "coder decoder bound optimization problems" (Expand search), "code code bound optimization problems" (Expand search), "decoder codec bound optimization problems" (Expand search), "coder codes bounds optimization problems" (Expand search), "coder lower bound optimization problems" (Expand search), "coder code bounds optimization 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)

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 bound optimization problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder bound optimization problems\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder bound optimization problems ) OR ( api python python python programming ))*.