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 avoid matlab programa" » "coder coder and matlab programa" (Expand search), "coder decoder avoid matlab programa" (Expand search), "code code avoid matlab programa" (Expand search), "decoder codec avoid matlab programa" (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 avoid matlab programa") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder avoid matlab programa\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder avoid matlab programa ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder avoid matlab programa") OR ("_ python python python programming"))*.