Perhaps you should try some spelling variations:
cach thoi » cach thuc, cach noi
cac khoi » cac khoan, hoc khoi, cac hop
van hanh » van thanh, ban hanh, van anh
cac thoi » cac toi, cac hop, cac tro
tang dan » tang van, tung dan, tang luan
vuc van » duc van, luc van, thuc van
cam vuc » cam xuc
hieu vu » hieu va, hieu ve, hieu su
dan hoi » dan hoc, dai hoi, van hoi
cua cau » cua cac, cua chu, cua cay
vu cam » vu cham, vu cao, va cam
vi cua » vai cua, di cua

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: tu ((((cac khoi) OR (cach thoi))) OR (cac thoi)) tang dan hoi. hieu vu cam vuc van hanh vi cua cau~.
• Adding a wildcard symbol may retrieve word variants: tu ((((cac khoi) or (cach thoi))) or (cac thoi)) tang dan hoi. hieu vu cam vuc van hanh vi cua cau*.