Perhaps you should try some spelling variations:
trieu dinh » trieu tinh, trieu minh, trien dich
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh tung » manh hung, thanh tung
nang cong » nang song, dang cong, bang cong
tung cua » trung cua, tuong cua, dung cua
cua nang » chua nang, cua dang, cua hang
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: hoc ((trieu dinh) or (chieu tinh)) - manh tung cua nang cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu dinh) OR (chieu tinh)) - manh tung cua nang cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu dinh) or (chieu tinh)) - manh tung cua nang cong san toan cau*.