Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
chieu tinh » trieu tinh, lieu tinh, chau tinh
dung cong » dung trong
trung va » truong va, trang va, trung ha
tac tran » tac trai, tac tren, tac trong
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sang) or (chieu tinh)) - thanh trung va dung cong ((tac tran) or (tan tran)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu tinh)) - thanh trung va dung cong ((tac tran) OR (tan tran)) cao.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu tinh)) - thanh trung va dung cong ((tac tran) or (tan tran)) cao*.