Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh
nhieu tang » nhiet nang
hanh trang » thanh trung, canh tranh, hanh trinh
hieu lang » hieu quang, hieu van, biet lang
trong san » trong cac, cong san, dong san
trang va » tran van, hang va
san than » sang than, san thanh, ban than
than cao » toan cao, thai cao, than cap
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sang) OR (nhieu tang))) OR (hieu lang)) - hanh trang va dung trong san than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sang) OR (nhieu tang))) or (hieu lang)) - hanh trang va dung trong san than cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sang) OR (nhieu tang))) or (hieu lang)) - hanh trang va dung trong san than cao*.