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