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 solution hplc coding program" » "code solution hplc coding program" (Expand search), "copper solution hplc coding program" (Expand search), "powder solution hplc coding program" (Expand search), "coder solution hplc cloning program" (Expand search), "coder solution hplc loading program" (Expand search), "coder solution hplc cooling programs" (Expand search), "coder resolution hplc coding program" (Expand search), "coder resolucion hplc coding program" (Expand search), "coder solution heat coding 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 hplc coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coder solution hplc coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder solution hplc coding program") OR ("and optimization python python programming"))*.