Perhaps you should try some spelling variations:
"_ convolutional coding tree problem" » "_ convolutional codes tree problem" (Expand search), "_ convolutional code tree problem" (Expand search), "_ convolutional long tree problem" (Expand search), "_ convolutional coding the problem" (Expand search), "_ convolutional coding time problem" (Expand search), "_ convolutional coding rye problem" (Expand search)
"advanced coding python python programming" » "advanced modeling python python programming" (Expand search), "advanced coatings python python programming" (Expand search), "advanced cutting python python programming" (Expand search), "advanced codigo python python programming" (Expand search), "advanced codigos python python programming" (Expand search), "advanced using python python programming" (Expand search), "advanced coding pythons python programming" (Expand search), "advanced coding piton python programming" (Expand search), "advanced coding pitons 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: (("_ convolutional coding tree problem") OR ("advanced coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ convolutional coding tree problem\") OR (\"advanced coding python python programming\"))".
• Removing quotes may allow a broader search: (( _ convolutional coding tree problem ) OR ( advanced coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional coding tree problem") OR ("advanced coding python python programming"))*.