Perhaps you should try some spelling variations:
"under vector coding to complexity" » "under vector coding _ complexity" (Expand search), "under vector coding and complexity" (Expand search), "fever vector coding to complexity" (Expand search), "under vector acording to complexity" (Expand search), "under vector decoding to complexity" (Expand search), "under vector bonding to complexity" (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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("under vector coding to complexity") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"under vector coding to complexity\") OR (\"in python python python programming\"))*".
• Removing quotes may allow a broader search: (( under vector coding to complexity ) OR ( in python python python programming ))*.