Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan dang » tran dang, tuan bang, tuan dung
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
theo yeu » thiet yeu, theo chu
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((ho chieu) or (((theo tieu) or (theo yeu)))) sach - thanh trung tuan dang cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo tieu) OR (theo yeu)))) sach - thanh trung tuan dang cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo tieu) or (theo yeu)))) sach - thanh trung tuan dang cong tac toan cau*.