Perhaps you should try some spelling variations:
"surface optimization python python programming" » "shape optimization python python programming" (Expand search), "scale optimization python python programming" (Expand search), "resource optimization python python programming" (Expand search), "surface optimization method python programming" (Expand search), "surface optimization option python programming" (Expand search), "surface optimization methods python programming" (Expand search), "surface optimization pythons python programming" (Expand search), "surface optimization piton python programming" (Expand search), "surface optimization pitons python programming" (Expand search)
"coder solution with locking program" » "coder solution with stocking program" (Expand search), "coder solution with loading program" (Expand search), "coder solution with housing program" (Expand search), "code solution with locking program" (Expand search), "powder solution with locking program" (Expand search), "copper solution with locking program" (Expand search), "coder solutions with locking program" (Expand search), "coder solution with blocking program" (Expand search), "coder solution with working program" (Expand search), "coder solution with long 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 solution with locking program\") OR (\"surface optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder solution with locking program ) OR ( surface optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder solution with locking program") OR ("surface optimization python python programming"))*.