Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
cong cong » cong dong, trong cong, dung cong
cong sach » ong sach, song sach, duong sach
sach danh » sach tranh, sach dao, sach dung
doc hieu » hoc thieu, hoc hien
tran van » luan van
van cong » van dong, van phong, phan cong
danh cap » danh ca, danh cau, hanh cap

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) or (toc thieu)) manh - thanh tran van cong cong sach danh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) manh - thanh tran van cong cong sach danh cap*.