Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
tuong quan » truong quan, thong quan, luong quan
nhung cong » dung cong, thong cong, hang cong
tung quan » trung quan, dung quan, tong quan
cong san » cong tac
phan dau » phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - thanh ((tung quan) OR (tuong quan)) nhung cong san ((phan dau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh ((tung quan) OR (tuong quan)) nhung cong san ((phan dau) OR (hang dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - thanh ((tung quan) OR (tuong quan)) nhung cong san ((phan dau) or (hang dau))".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh ((tung quan) OR (tuong quan)) nhung cong san ((phan dau) or (hang dau))*.