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