Perhaps you should try some spelling variations:
"coder and complexity based problem" » "coder and complexity and problem" (Expand search), "coder and complexity beyond problem" (Expand search), "coder and complexity index problem" (Expand search), "coder and complexity based problems" (Expand search), "coder and complexity based probe" (Expand search), "coder and complexity posed problem" (Expand search), "code and complexity based problem" (Expand search), "codes and complexity based problem" (Expand search), "poder and complexity based 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 and complexity based problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder and complexity based problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder and complexity based problem") OR ("api python python python programming"))*.