Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
phong trong » phuong trong, thong trong, khong trong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
trong dan » trong dang, trong san, trong tan
tuong va » truong va, thuong va, luong va
va phong » van phong, va phuong, va thong
phan dau » hang dau
phan cac » nhan cach, phan lap, phan van

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: hoc chinh sach - thanh tuong va phong trong dan ((((phan dau) OR (phan tu))) OR (phan cac))~.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - thanh tuong va phong trong dan ((((phan dau) or (phan tu))) or (phan cac))*.