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