Perhaps you should try some spelling variations:
"coder brooding tree algorithms complexity" » "coder brooding tree algorithmic complexity" (Expand search), "coder brooding the algorithms complexity" (Expand search), "coder brooding based algorithms complexity" (Expand search), "closed brooding tree algorithms complexity" (Expand search), "coder growing tree 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder brooding tree algorithms complexity\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder brooding tree algorithms complexity ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder brooding tree algorithms complexity") OR ("api python python python programming"))*.