Perhaps you should try some spelling variations:
thanh dai » thanh tai, thanh dat, thanh oai
thanh hai » thanh phan, thanh hoa, thanh san
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
xuc gia » duc gia, luc gia, tuc gia
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
thiet » thieu

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 gia ((thanh dai) OR (thanh hai)) va thiet~.
• 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 gia ((thanh dai) OR (thanh hai)) va thiet~".
• Adding a wildcard symbol may retrieve word variants: tu sai ky ((nang xa) or (nang x)) hoi. hieu va cac xuc gia ((thanh dai) OR (thanh hai)) va thiet*.