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 inversion of coding program" » "phase inversion of coding program" (Expand search), "and inversion of coding program" (Expand search), "based intrusion of coding program" (Expand search), "based inversion of cloning program" (Expand search), "based inversion of loading program" (Expand search), "based inversion of cooling programs" (Expand search), "based conversion of coding program" (Expand search), "based inversion non coding program" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("based inversion of coding program") OR ("and optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based inversion of coding program\") OR (\"and optimization python python programming\"))".
• Removing quotes may allow a broader search: (( based inversion of coding program ) OR ( and optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based inversion of coding program") OR ("and optimization python python programming"))*.