Perhaps you should try some spelling variations:
"activity application python python programming" » "active application python python programming" (Expand search), "mobility applications python python programming" (Expand search), "activity evaluation python python programming" (Expand search), "activity application method python programming" (Expand search), "activity aplicativo python python programming" (Expand search), "activity application methods python programming" (Expand search), "activity application pythons python programming" (Expand search), "activity application piton python programming" (Expand search), "activity application pitons python programming" (Expand search)
"_ convolutional code tracing problem" » "_ convolutional codes tracing problem" (Expand search), "_ convolutional and tracing problem" (Expand search), "_ convolucional cnn tracing problem" (Expand search), "_ convolutional code tracking problem" (Expand search), "_ convolutional code tracking problems" (Expand search), "_ convolutional code teaching problem" (Expand search), "_ convolutional cone tracing problem" (Expand search), "_ convolutional model tracing problem" (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 code tracing problem") OR ("activity application python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ convolutional code tracing problem\") OR (\"activity application python python programming\"))".
• Removing quotes may allow a broader search: (( _ convolutional code tracing problem ) OR ( activity application python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional code tracing problem") OR ("activity application python python programming"))*.