Perhaps you should try some spelling variations:
trung thang » trung thanh, trung tang, truong thanh
thanh trung » thanh tung
thang dang » thang long, phan dang, nhan dang
hoc chieu » hoc thieu, ho chieu, hoc hien
dang cong » dung cong
cong manh » cong danh, duong manh, cong thanh
manh van » anh van, menh van, canh van

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 (toc thieu)) sach - thanh trung thang dang cong manh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (toc thieu)) sach - thanh trung thang dang cong manh van ban*.