Perhaps you should try some spelling variations:
"advanced optimization in python programming" » "variance optimization in python programming" (Expand search), "and optimization in python programming" (Expand search), "advanced oxidation in python programming" (Expand search), "advanced optimization and python programming" (Expand search), "advanced optimization _ python programming" (Expand search)
"and conventional coding decoding program" » "and conventional cooling decoding program" (Expand search), "and conventional loading decoding program" (Expand search), "and conventional cooking decoding program" (Expand search), "and conventional coding welcoming program" (Expand search), "and conventional coding deworming program" (Expand search), "and conventional coding feeding program" (Expand search), "and conventional encoding decoding program" (Expand search), "and conventional reading decoding program" (Expand search), "and conventional joint decoding program" (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: "((\"and conventional coding decoding program\") OR (\"advanced optimization in python programming\"))~".
• Removing quotes may allow a broader search: (( and conventional coding decoding program ) OR ( advanced optimization in python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and conventional coding decoding program") OR ("advanced optimization in python programming"))*.