Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, canh tranh, hanh trinh
dung cong » dung trong
trang va » tran van, hang va
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, tran bai
toan ban » van ban
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 ((chinh sach) or (chieu sang)) - hanh trang va dung cong tan ((tran ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chieu sang)) - hanh trang va dung cong tan ((tran ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chieu sang)) - hanh trang va dung cong tan ((tran ban) or (toan ban))*.