Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
ho chieu » hoc thieu, doi chieu, mot chieu
va trong » va truong, va thong, va tuong
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cao » nha cao, nhan tao, nhan co
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) sang - thanh tung va trong cong tac nhan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - thanh tung va trong cong tac nhan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sang - thanh tung va trong cong tac nhan cao*.