Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tuan » trung tam, tran tuan, truong thanh
dang cong » dung cong
khi xanh » khia canh, thi hanh, thi anh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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: doi khi xanh - manh ((trung tuan) OR (trung thanh)) dang cong tan toan cao~.
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - manh ((trung tuan) or (trung thanh)) dang cong tan toan cao*.