Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
chieu xanh » chieu sach, chieu sang, chieu tinh
chuc danh » chuc nganh, thuc hanh, chuc nang
tuong dan » huong dan, tung dan, xuong dan
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
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: theo ((chuc danh) OR (chieu xanh)) - hanh ((tang cua) OR (hang cua)) nhung tuong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chieu xanh)) - hanh ((tang cua) OR (hang cua)) nhung tuong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chieu xanh)) - hanh ((tang cua) OR (hang cua)) nhung tuong dan toan cau*.