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