Perhaps you should try some spelling variations:
"and optimization python python programming" » "and optimization method python programming" (Expand search), "and optimization option python programming" (Expand search), "and optimization methods python programming" (Expand search), "and optimization pythons python programming" (Expand search), "and optimization piton python programming" (Expand search), "and optimization pitons python programming" (Expand search)
"based mapping using coding program" » "based mapping using cloning program" (Expand search), "based mapping using loading program" (Expand search), "based mapping using cooling programs" (Expand search), "and mapping using coding program" (Expand search), "based machine using coding program" (Expand search), "based mapping using coping program" (Expand search), "based mapping using coating program" (Expand search), "based mapping using cooking 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: "((\"based mapping using coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( based mapping using coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based mapping using coding program") OR ("and optimization python python programming"))*.