Perhaps you should try some spelling variations:
thanh tung » thanh cong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
phan cac » nhan cach, phan dau, phan lap
tung he » dung he, tung ho, tang he
he tong » he thong, he trong, he cong

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 (doc hieu)) xanh - thanh tung he tong ((cong tan) or (cong tac)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - thanh tung he tong ((cong tan) OR (cong tac)) phan cac.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - thanh tung he tong ((cong tan) or (cong tac)) phan cac*.