Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hieu lang » chieu sang, hieu quang, nhieu tang
dang cong » dung cong
cua tinh » cua sinh, va tinh, ha tinh
dung cua » dung luan, dung cho
cong san » cong tac
san chan » san chang, dan chan, san chay
chan cau » phan cau, can cau, chinh cau

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) or (cua tinh)) - hanh ((dung cua) or (trung tuan)) dang cong san chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (cua tinh)) - hanh ((dung cua) OR (trung tuan)) dang cong san chan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (cua tinh)) - hanh ((dung cua) or (trung tuan)) dang cong san chan cau*.