Perhaps you should try some spelling variations:
"coder function testing complexity from" » "coder function teaching complexity from" (Expand search), "coder function using complexity from" (Expand search), "coder function taming complexity from" (Expand search), "coder functional testing complexity from" (Expand search), "coder function tests complexity from" (Expand search), "coder function test complexity from" (Expand search), "modern function testing complexity from" (Expand search), "power function testing complexity from" (Expand search), "over function testing complexity from" (Expand search)
"using in python python programming" » "using in pythons python programming" (Expand search), "using in piton python programming" (Expand search), "using in pitons python programming" (Expand search), "using _ 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 function testing complexity from") OR ("using in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder function testing complexity from\") OR (\"using in python python programming\"))".
• Removing quotes may allow a broader search: (( coder function testing complexity from ) OR ( using in python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder function testing complexity from") OR ("using in python python programming"))*.