Perhaps you should try some spelling variations:
"coder code complexity mathematical problem" » "coder code complexity mathematics problem" (Expand search), "coder code complex mathematical problem" (Expand search), "coder code continuity mathematical problem" (Expand search), "coder case complexity mathematical problem" (Expand search), "coder the complexity mathematical problem" (Expand search), "coder and complexity mathematical problem" (Expand search), "code code complexity mathematical problem" (Expand search), "modern code complexity mathematical problem" (Expand search), "color code complexity mathematical 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 code complexity mathematical problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code complexity mathematical problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code complexity mathematical problem") OR ("api python python python programming"))*.