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