Perhaps you should try some spelling variations:
"using complexity classes sampling program" » "using complexity channel sampling program" (Expand search), "using complexity based sampling program" (Expand search), "using complex classes sampling program" (Expand search), "using complete classes sampling program" (Expand search), "design complexity classes sampling program" (Expand search), "using complexity gases sampling program" (Expand search), "using complexity classes calling program" (Expand search), "using complexity leaves sampling program" (Expand search), "using complexity classes labeling program" (Expand search), "using complexity classes smoking program" (Expand search), "using complexity classes jumping program" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("using complexity classes sampling program") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using complexity classes sampling program\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( using complexity classes sampling program ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("using complexity classes sampling program") OR ("using coding python python programming"))*.