Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
dat cua » dai cua, day cua, mat cua
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky lang xa hoi. hieu va cao ((xuc va) or (luc va)) thanh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang xa hoi. hieu va cao ((xuc va) OR (luc va)) thanh dat cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang xa hoi. hieu va cao ((xuc va) or (luc va)) thanh dat cua tre*.