Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
thiet yeu » thiet ke, theo yeu
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
cho chu » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thiet yeu) or (cho chu)) sach - manh trung cua tong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thiet yeu) OR (cho chu)) sach - manh trung cua tong cong dan toan cao*.