Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
dung khong » dung khang, dung hong, dung phong
khong luan » thong luan, khong quan, khung luan
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
tran ung » tran hung, tran dung, tran tung
van hau » van ha, van hai, van hac
van dau » van dao, 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: ((hoc chieu) or (hoc thieu)) sach - thanh tran ung dung khong luan ((van hau) or (van dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) sach - thanh tran ung dung khong luan ((van hau) OR (van dau)).
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (hoc thieu)) sach - thanh tran ung dung khong luan ((van hau) or (van dau))*.