Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va trien » va truyen, va thiet, va tuyen
va triet » va thiet, ve triet, cua triet
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
mang xa » lang xa, mang may, dang xay
sai ky » sac ky
xuc va » duc va, tuc va, luc va
tu sai » tu bai, tu san, tu cai

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: tu sai ky ((mang xa) OR (nang x)) hoi. hieu va cac xuc va thanh dai ((va triet) OR (va trien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((mang xa) or (nang x)) hoi. hieu va cac xuc va thanh dai ((va triet) OR (va trien))~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((mang xa) or (nang x)) hoi. hieu va cac xuc va thanh dai ((va triet) OR (va trien))*.