Perhaps you should try some spelling variations:
"advanced optimization of python programming" » "variance optimization of python programming" (Expand search), "and optimization of python programming" (Expand search), "advanced oxidation of python programming" (Expand search), "advanced optimization on python programming" (Expand search), "advanced optimization _ python programming" (Expand search), "advanced optimization in python programming" (Expand search)
"and compositional data coding program" » "and composition data coding program" (Expand search), "and computational data coding program" (Expand search), "acid composition data coding program" (Expand search), "and compositional data cloning program" (Expand search), "and compositional data loading program" (Expand search), "and compositional data cooling programs" (Expand search), "and compositional data recording program" (Expand search), "and compositional data crossing 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 compositional data coding program\") OR (\"advanced optimization of python programming\"))~".
• Removing quotes may allow a broader search: (( and compositional data coding program ) OR ( advanced optimization of python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and compositional data coding program") OR ("advanced optimization of python programming"))*.