Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong thanh » dong thanh, cong trinh, cong tan
hieu lang » chieu sang, hieu quang, nhieu tang
trung cap » truong cao, trung tam
cap trong » cay trong, ca trong, cad trong
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - thanh trung cap trong ((cong san) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - thanh trung cap trong ((cong san) OR (cong thanh)) toan cau*.