Perhaps you should try some spelling variations:
thanh trung » thanh tung
hieu lang » chieu sang, hieu quang, nhieu tang
trung gap » trung cap, trung gay, trung lap
gap trong » ap trong, gay trong, lap trong
ban thanh » ban hanh, ban hang
thanh cac » hanh cac, thanh bac, thanh ca
cong ban » cong bang, cong san, cong tan
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh trung gap trong cong ban thanh cac~.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung gap trong cong ban thanh cac*.