Perhaps you should try some spelling variations:
brain machine » ai machine, man machine
machine 2.1 » machines 2.1, machine 2.6, machines 2.2
das human » des human, does human, sdgs human
dong bin » dong di, dann bin
ya human » a human, 2 human, 3 human
2.1 kind » 2.1 wind, 3.1 kinds, 4.1 kinds
sin » sign, sind, skin
saur » sur, spur

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong bin) or (dong sin)) ((ya human) or (das human)) brain machine 2.1 kind saur ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong bin) OR (dong sin)) ((ya human) OR (das human)) brain machine 2.1 kind saur ;.
• Adding a wildcard symbol may retrieve word variants: ((dong bin) or (dong sin)) ((ya human) or (das human)) brain machine 2.1 kind saur ;*.