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