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