Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
ho chieu » hoc thieu, doi chieu, mot chieu
cong tan » cong tac, cong san, cong thanh
tung va » trung va, tuong va, dung va
tan cao » toan cao, tao cao, tay cao

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)) tinh - thanh tung va nhung cong tan cao (chat OR nhat)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - thanh tung va nhung cong tan cao (chat OR nhat).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) tinh - thanh tung va nhung cong tan cao (chat OR nhat)".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) tinh - thanh tung va nhung cong tan cao (chat OR nhat)*.