Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu sach » chieu sach, hieu cach, dien sach
tran dung » tran dang, tran hung, trung dung
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu sach - thanh tung ((tran dung) or (tran quang)) cong dan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sach - thanh tung ((tran dung) OR (tran quang)) cong dan phan lap.
• Adding a wildcard symbol may retrieve word variants: doc hieu sach - thanh tung ((tran dung) or (tran quang)) cong dan phan lap*.