Perhaps you should try some spelling variations:
"_ convolutional coding of program" » "_ convolutional codes of program" (Expand search), "_ convolutional code of program" (Expand search), "_ convolutional long of program" (Expand search), "_ convolutional coding of programs" (Expand search), "_ convolutional bonding of program" (Expand search), "_ convolutional coding _ program" (Expand search)
"advanced validation python python programming" » "advanced oxidation python python programming" (Expand search), "advanced glication python python programming" (Expand search), "advanced visualization python python programming" (Expand search), "advanced validation method python programming" (Expand search), "advanced animation python python programming" (Expand search), "advanced validation methods python programming" (Expand search), "advanced validation pythons python programming" (Expand search), "advanced validation piton python programming" (Expand search), "advanced validation 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 coding of program\") OR (\"advanced validation python python programming\"))~".
• Removing quotes may allow a broader search: (( _ convolutional coding of program ) OR ( advanced validation python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional coding of program") OR ("advanced validation python python programming"))*.