Perhaps you should try some spelling variations:
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)
"coder coder vector control program" » "coder under vector control program" (Expand search), "coder model vector control program" (Expand search), "coder order vector control program" (Expand search), "coder decoder vector control program" (Expand search), "code code vector control program" (Expand search), "decoder codec vector control program" (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 coder vector control program") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder vector control program\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder vector control program ) OR ( _ python python python programming ))*.