Perhaps you should try some spelling variations:
machine aids » machine minds, machine ages, machine arts
long green » going green, long grain
ai machine » a machine, 4 machine, 2 machine
yang july » yang judy, yang jun
green ai » green a, green bim, green gap
yang jui » yang judy, yang di, yang xi
yang yi » yang di, yang xi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: long green ai machine aids ((((yang jui) OR (yang yi))) OR (yang july)) (wing OR wan) hua ;~.
• Adding a wildcard symbol may retrieve word variants: long green ai machine aids ((((yang jui) or (yang yi))) or (yang july)) (wing or wan) hua ;*.