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)
"coder estimation python codigo program" » "coder estimation portion codigo program" (Expand search), "coder estimation method codigo program" (Expand search), "coder animation python codigo program" (Expand search), "model estimation python codigo program" (Expand search), "power estimation python codigo program" (Expand search), "color estimation python codigo program" (Expand search), "coder estimation python coding program" (Expand search), "coder estimation python code 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: "((\"coder estimation python codigo program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder estimation python codigo program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder estimation python codigo program") OR ("and optimization python python programming"))*.