Perhaps you should try some spelling variations:
"coder vector coding space complexity" » "coder vector coding case complexity" (Expand search), "coder vector coding care complexity" (Expand search), "coder vector coding rate complexity" (Expand search), "under vector coding space complexity" (Expand search), "model vector coding space complexity" (Expand search), "order vector coding space complexity" (Expand search), "coder vector encoding space complexity" (Expand search), "coder vector coding scale complexity" (Expand search), "coder vector crossing space complexity" (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 vector coding space complexity") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder vector coding space complexity\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder vector coding space complexity ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder vector coding space complexity") OR ("_ python python python programming"))*.