Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sach » chinh sach, chiet tach, chieu sang
trung tai » truong tai, trung tam, trung dai
tong cong » trong cong, cong cong, dung cong
tai tong » tai trong, tai cong, tai truong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
va tinh » may tinh

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 sach) or (va tinh)) - manh trung tai tong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (va tinh)) - manh trung tai tong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (va tinh)) - manh trung tai tong cong tac toan cau*.