Perhaps you should try some spelling variations:
phuong trong » thuong trong, huong trong, phong trong
xuat phuong » xuat thuong, xuan phuong, luat thuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh nang » anh nang, ganh nang, hanh mang
nang xuat » nang suat, hang xuat, nang xuan
trong tan » trong quan, trong cac, trong ca
tran tuan » tran xuan, tran quang, tran thanh
tran tap » toan tap, tran tan, trang tai

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 ((chinh sach) OR (chieu sang)) - hanh nang xuat phuong trong tan ((tran tap) OR (tran tuan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chinh sach) or (chieu sang)) - hanh nang xuat phuong trong tan ((tran tap) OR (tran tuan))~".
• Adding a wildcard symbol may retrieve word variants: theo ((chinh sach) or (chieu sang)) - hanh nang xuat phuong trong tan ((tran tap) OR (tran tuan))*.