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