Perhaps you should try some spelling variations:
hien quang » dien quang, bien quang, hien quan
trung tuan » trung thanh, trung tam, tran tuan
trung cua » truong cua, trung cap, dung cua
dung cong » dung trong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cau » thanh chau, thanh mau, nhanh cau
cong tac » cong ty

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien quang - thanh ((trung cua) or (trung tuan)) dung cong tac thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien quang - thanh ((trung cua) OR (trung tuan)) dung cong tac thanh cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien quang - thanh ((trung cua) or (trung tuan)) dung cong tac thanh cau*.