Perhaps you should try some spelling variations:
"coder coder modern optimization problem" » "coder coder modern optimization problems" (Expand search), "coder coder model optimization problem" (Expand search), "coder coder modeling optimization problem" (Expand search), "coder coder code optimization problem" (Expand search), "coder powder modern optimization problem" (Expand search), "coder code moderne optimization problem" (Expand search), "coder under modern optimization problem" (Expand search), "coder decoder modern optimization problem" (Expand search), "code code modern optimization problem" (Expand search), "decoder codec modern 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.

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