Perhaps you should try some spelling variations:
thien van » thi van
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, lieu va, hieu ve
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san

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 nang xa hoi. ((hieu van) OR (thien van)) lam ((xuc va) or (luc va)) thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. ((hieu van) OR (thien van)) lam ((xuc va) OR (luc va)) thanh tai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. ((hieu van) OR (thien van)) lam ((xuc va) or (luc va)) thanh tai cua tre*".