Perhaps you should try some spelling variations:
"using amputation from convex programming" » "using amputation from cone programming" (Expand search), "using amputation from computer programming" (Expand search), "using imputation from convex programming" (Expand search), "using mutation from convex programming" (Expand search), "using reputation from convex programming" (Expand search), "using amputation of convex programming" (Expand search), "using adaptation from convex programming" (Expand search), "using amputation from context programming" (Expand search), "using amputation from conexa programming" (Expand search)
"using positional code coding program" » "using conditional code coding program" (Expand search), "using rotational code coding program" (Expand search), "using traditional code coding program" (Expand search), "using positional codon coding program" (Expand search), "using positional role coding program" (Expand search), "using posicional pode coding program" (Expand search), "using positional code cloning program" (Expand search), "using positional code loading program" (Expand search), "using positional code cooling programs" (Expand search), "using positional code codigo program" (Expand search), "using positional code according program" (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: (("using positional code coding program") OR ("using amputation from convex programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using positional code coding program\") OR (\"using amputation from convex programming\"))".
• Removing quotes may allow a broader search: (( using positional code coding program ) OR ( using amputation from convex programming )).
• Adding a wildcard symbol may retrieve word variants: (("using positional code coding program") OR ("using amputation from convex programming"))*.