Perhaps you should try some spelling variations:
"coder coder implementing semidefinite programming" » "coder coder implementing evidence programming" (Expand search), "coder coder implementing guideline programming" (Expand search), "coder after implementing semidefinite programming" (Expand search), "coder or implementing semidefinite programming" (Expand search), "coder toward implementing semidefinite programming" (Expand search), "coder decoder implementing semidefinite programming" (Expand search), "code code implementing semidefinite programming" (Expand search), "decoder codec implementing semidefinite programming" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ 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 implementing semidefinite programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder implementing semidefinite programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder implementing semidefinite programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder implementing semidefinite programming") OR ("_ python python python programming"))*.