Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh dai » thanh tai, thanh dat, thanh oai
va triet » va thiet, va trien, ve triet
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
bai ky » ban ky, sai ky, bac ky
xuc va » duc va, tuc va, luc va
tu bai » tu ban, tu bat, te bai

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