Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trung » thanh trung, hanh trang, manh trung
nhung dung » phuong dung, ung dung, thong dung
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
dung anh » dung danh, duong anh, dong anh
tuan ban » tuan bang, luan ban, quang ban
toan ban » van ban
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trieu tinh) or (chiet tach)) - hanh trung cua nhung dung anh ((tuan ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu tinh) OR (chiet tach)) - hanh trung cua nhung dung anh ((tuan ban) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu tinh) or (chiet tach)) - hanh trung cua nhung dung anh ((tuan ban) or (toan ban))*.