Perhaps you should try some spelling variations:
"coder using tree algorithms complexity" » "coder using tree algorithmic complexity" (Expand search), "coder using the algorithms complexity" (Expand search), "coder using based algorithms complexity" (Expand search), "coders using tree algorithms complexity" (Expand search), "cover using tree algorithms complexity" (Expand search), "code using tree algorithms complexity" (Expand search), "coder using three algorithms complexity" (Expand search), "coder using free algorithms complexity" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder using tree algorithms complexity") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder using tree algorithms complexity\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder using tree algorithms complexity ) OR ( api python python python programming ))*.