Perhaps you should try some spelling variations:
"coder coder sampling using problem" » "coder under sampling using problem" (Expand search), "coder over sampling using problem" (Expand search), "coder core sampling using problem" (Expand search), "coder coder samples using problem" (Expand search), "coder coder sampling in problem" (Expand search), "coder coder sampling unit problem" (Expand search), "coder coder sampling housing problems" (Expand search), "coder coder sampling routing problem" (Expand search), "coder coder sampling cutting problem" (Expand search), "coder decoder sampling using problem" (Expand search), "code code sampling using problem" (Expand search), "decoder codec sampling using 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 sampling using problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder sampling using problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder sampling using problem") OR ("api python python python programming"))*.