Perhaps you should try some spelling variations:
"coder case complexity based problems" » "coder case complexity and problems" (Expand search), "coder case complexity beyond problems" (Expand search), "coder case complexity index problems" (Expand search), "coder the complexity based problems" (Expand search), "coder and complexity based problems" (Expand search), "coder case complexity posed problems" (Expand search), "coder case complexity based probes" (Expand search), "coder case complexity basic problems" (Expand search), "border case complexity based problems" (Expand search), "power case complexity based problems" (Expand search), "lower case complexity based problems" (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 case complexity based problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder case complexity based problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder case complexity based problems") OR ("api python python python programming"))*.