Perhaps you should try some spelling variations:
"coder coder or integer programming" » "coder coder or linear programming" (Expand search), "coder decoder or integer programming" (Expand search), "code code or integer programming" (Expand search), "decoder codec or integer programming" (Expand search), "coder coder of integer programming" (Expand search), "coder coder on integer programming" (Expand search), "coder coder over integer programming" (Expand search), "coder code or integer programming" (Expand search), "coder order or integer programming" (Expand search), "coder under or integer 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 or integer programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder or integer programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder or integer programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder or integer programming") OR ("on python python python programming"))*.