Perhaps you should try some spelling variations:
"coder coder on semidefinite programming" » "coder coder in semidefinite programming" (Expand search), "coder coder and semidefinite programming" (Expand search), "coder coder _ semidefinite programming" (Expand search), "coder decoder on semidefinite programming" (Expand search), "code code on semidefinite programming" (Expand search), "decoder codec on semidefinite programming" (Expand search), "coder code on semidefinite programming" (Expand search), "coder codes on semidefinite programming" (Expand search), "coder powder on semidefinite programming" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder on semidefinite programming\") OR (\"in python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder on semidefinite programming ) OR ( in python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder on semidefinite programming") OR ("in python python python programming"))*.