Perhaps you should try some spelling variations:
"_ convolutional code teaching problem" » "_ convolutional codes teaching problem" (Expand search), "_ convolutional and teaching problem" (Expand search), "_ convolucional cnn teaching problem" (Expand search), "_ convolutional code teaching program" (Expand search), "_ convolutional code teaching profile" (Expand search), "_ convolutional code teaching programs" (Expand search), "_ convolutional care teaching problem" (Expand search), "_ convolutional case teaching problem" (Expand search), "_ convolutional home teaching problem" (Expand search)
"active replication python python programming" » "machine replication python python programming" (Expand search), "partial replication python python programming" (Expand search), "active radiation python python programming" (Expand search), "active replication method python programming" (Expand search), "active replication within python programming" (Expand search), "active replication protein python programming" (Expand search), "active replication pythons python programming" (Expand search), "active replication piton python programming" (Expand search), "active replication pitons 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: "((\"_ convolutional code teaching problem\") OR (\"active replication python python programming\"))~".
• Removing quotes may allow a broader search: (( _ convolutional code teaching problem ) OR ( active replication python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional code teaching problem") OR ("active replication python python programming"))*.