Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
trung cap » truong cao, trung tam
toan tap » toan ban
va cong » tai cong, cua cong
cap va » tap va, lap va, cao 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 ((dieu hanh) or (chieu sang)) - thanh trung cap va cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((dieu hanh) OR (chieu sang)) - thanh trung cap va cong thanh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((dieu hanh) or (chieu sang)) - thanh trung cap va cong thanh toan tap*.