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)
"and simulation code coding program" » "and simulation model coding program" (Expand search), "and simulation case coding program" (Expand search), "and simulation models coding program" (Expand search), "and simulation code cloning program" (Expand search), "and simulation code loading program" (Expand search), "and simulation code cooling programs" (Expand search), "and simulation code codigo program" (Expand search), "and simulation code according 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 simulation code coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( and simulation code coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and simulation code coding program") OR ("and optimization python python programming"))*.