Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va triet » va thiet, va trien, ve triet
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
sai ky » sac ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
dai va » mai 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 ((nang xa) OR (nang x)) hoi. hieu va cac ((xuc va) OR (tuc va)) thanh dai va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((nang xa) or (nang x)) hoi. hieu va cac ((xuc va) OR (tuc va)) thanh dai va triet~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) or (nang x)) hoi. hieu va cac ((xuc va) OR (tuc va)) thanh dai va triet*.