Perhaps you should try some spelling variations:
"_ convolutional coding using programs" » "_ convolutional codes using programs" (Expand search), "_ convolutional code using programs" (Expand search), "_ convolutional long using programs" (Expand search), "_ convolutional coding using program" (Expand search), "_ convolutional coding housing programs" (Expand search), "_ convolutional coding nursing programs" (Expand search), "_ convolutional loading using programs" (Expand search), "_ convolutional modeling using programs" (Expand search), "_ convolutional drying using programs" (Expand search)
"advanced validation of python programming" » "advanced oxidation of python programming" (Expand search), "advanced glication of python programming" (Expand search), "advanced visualization of python programming" (Expand search), "advanced validation _ python programming" (Expand search), "advanced validation in 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 using programs\") OR (\"advanced validation of python programming\"))~".
• Removing quotes may allow a broader search: (( _ convolutional coding using programs ) OR ( advanced validation of python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional coding using programs") OR ("advanced validation of python programming"))*.