Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
chuc hach » chuc hanh, thuc hanh, chuc danh
trung hay » trung ha, trung hai, trung gay
hay nhung » tay nhung, tham nhung, thai nhung
tan thanh » tran thanh, tang thanh, toan thanh
thanh cau » thanh chau, thanh mau, nhanh cau
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc hach) or (chieu sach)) - thanh trung hay nhung cong tan thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc hach) OR (chieu sach)) - thanh trung hay nhung cong tan thanh cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chuc hach) or (chieu sach)) - thanh trung hay nhung cong tan thanh cau*.