Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung tuong » nhung huong, nhung phuong, hung vuong
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (hoc thieu)) tinh - thanh trung cua nhung tuong ((xuan toan) or (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc thieu)) tinh - thanh trung cua nhung tuong ((xuan toan) OR (van toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc thieu)) tinh - thanh trung cua nhung tuong ((xuan toan) or (van toan)) cau*.