Perhaps you should try some spelling variations:
"coder coder write linear programmin" » "coder coder write linear programming" (Expand search), "coder coder write nonlinear programming" (Expand search), "coder coder rate linear programmin" (Expand search), "coder coder fonte linear programmin" (Expand search), "coder coder feixe linear programmin" (Expand search), "coder decoder write linear programmin" (Expand search), "code code write linear programmin" (Expand search), "decoder codec write linear programmin" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (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 write linear programmin") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder write linear programmin\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder write linear programmin ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder write linear programmin") OR ("_ python python python programming"))*.