Perhaps you should try some spelling variations:
"coder coder working linear programming" » "coder coder working life programming" (Expand search), "coder coder solving linear programming" (Expand search), "coder coder varying linear programming" (Expand search), "coder cone working linear programming" (Expand search), "coder power working linear programming" (Expand search), "coder under working linear programming" (Expand search), "coder decoder working linear programming" (Expand search), "code code working linear programming" (Expand search), "decoder codec working linear programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 working linear programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder working linear programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder working linear programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder working linear programming") OR ("on python python python programming"))*.