Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
khong cong » thong cong, khong cang, chong cong
mot chieu » doi chieu, ho chieu
trung hua » trung ha, trung hoa, trung cua
hua khong » hoa khong, cua khong, hoac khong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (mot chieu)) sach - manh trung hua khong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (mot chieu)) sach - manh trung hua khong cong san toan cau*.