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