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)
"coding convention _ coding program" » "coding conventions _ coding program" (Expand search), "joint convention _ coding program" (Expand search), "bonding conventional _ coding program" (Expand search), "coding convention _ cloning program" (Expand search), "coding convention _ loading program" (Expand search), "coding convention _ cooling programs" (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: "((\"coding convention _ coding program\") OR (\"and optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( coding convention _ coding program ) OR ( and optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coding convention _ coding program") OR ("and optimization python python programming"))*.