Perhaps you should try some spelling variations:
thang human » than human, change human, shaping human
human habit » human hair, human habitats, human haptic
hoong chang » hoong ang, huang chang, joon chang
binh thang » binh thanh, bin zhang, binh thuan
habit seit » habe seit
huang yang » huang ying, huang chang, wang yang
yang yang » wang yang, wang yan

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: binh thang human habit seit ((huang yang) OR (((yang yang) OR (hoong chang)))) kyoung yang ;~.
• Adding a wildcard symbol may retrieve word variants: binh thang human habit seit ((huang yang) or (((yang yang) or (hoong chang)))) kyoung yang ;*.