Perhaps you should try some spelling variations:
"coder computational code tree problem" » "code computational code tree problem" (Expand search), "poder computacional code tree problem" (Expand search), "model computational code tree problem" (Expand search), "coder computational model tree problem" (Expand search), "coder computational cost tree problem" (Expand search), "coder computational models tree problem" (Expand search), "coder computational code the problem" (Expand search), "coder computational code trace problem" (Expand search), "coder computational code are 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 computational code tree problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder computational code tree problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder computational code tree problem") OR ("api python python python programming"))*.