Perhaps you should try some spelling variations:
"based instruction python python programming" » "based instruction method python programming" (Expand search), "based instruction to python programming" (Expand search), "based instruction on python programming" (Expand search), "assisted instruction python python programming" (Expand search), "based instruction pythons python programming" (Expand search), "based instruction piton python programming" (Expand search), "based instruction pitons python programming" (Expand search)
"coder retention vector coding program" » "coder prevention vector coding program" (Expand search), "coder retention factor coding program" (Expand search), "coder retention factors coding program" (Expand search), "copper retention vector coding program" (Expand search), "color retention vector coding program" (Expand search), "water retention vector coding program" (Expand search), "coder retention vector cloning program" (Expand search), "coder retention vector loading program" (Expand search), "coder retention vector cooling programs" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder retention vector coding program") OR ("based instruction python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder retention vector coding program\") OR (\"based instruction python python programming\"))*".
• Removing quotes may allow a broader search: (( coder retention vector coding program ) OR ( based instruction python python programming ))*.