Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
hinh truong » chinh truong, sinh truong, hinh trong
nhung tuong » nhung huong, hung vuong, nhung cong
truong cua » truong ca, truong quan, truong cao
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) tinh - hinh truong cua ((nhung tuong) OR (nhung phuong)) dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doc hieu)) tinh - hinh truong cua ((nhung tuong) OR (nhung phuong)) dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) tinh - hinh truong cua ((nhung tuong) OR (nhung phuong)) dan toan cau*.