Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung gian » truong giang, truong giao, trong giang
hieu manh » chieu xanh, hieu nganh, dieu hanh
thanh lap » thanh san, phan lap, thanh hai
cong san » cong tac
cao cap » cao chat

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 manh) or (chieu sang)) - thanh trung gian trong cong san ((cao cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - thanh trung gian trong cong san ((cao cap) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - thanh trung gian trong cong san ((cao cap) or (thanh lap))*.