Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tuan » trung tam, tran tuan, truong thanh
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban
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 tuan) or (trung thanh)) dung cong tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh ((trung tuan) OR (trung thanh)) dung cong tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh ((trung tuan) or (trung thanh)) dung cong tan ((toan cao) or (toan ban))*.