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