Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
dung dong » dung cong, vung dong, dung trong
anh tang » anh bang, anh dang, anh nang
tang tin » trang tin, nang tin, tang tan
dong anh » hong anh, dong thanh, hoang anh
anh quan » anh tuan, ban quan, anh nhan
quan tai » quan tri, quang tri, quan li

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 (chiet tach)) - anh tang tin dung dong anh quan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chiet tach)) - anh tang tin dung dong anh quan tai.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chiet tach)) - anh tang tin dung dong anh quan tai*.