Perhaps you should try some spelling variations:
"coder coder floor optimization problem" » "coder coder floor optimization problems" (Expand search), "coder coder flow optimization problem" (Expand search), "coder coder flows optimization problem" (Expand search), "coder coder loop optimization problem" (Expand search), "coder decoder floor optimization problem" (Expand search), "code code floor optimization problem" (Expand search), "decoder codec floor optimization problem" (Expand search), "coder under floor optimization problem" (Expand search), "coder wooden floor optimization problem" (Expand search), "coder models floor 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)

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 floor optimization problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder floor optimization problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder floor optimization problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder floor optimization problem") OR ("api python python python programming"))*.