Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh dai » hanh tai, hanh dao, vanh dai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van lam » van nam
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
luc 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: te sac ky lang xa hoi. hieu van lam ((luc va) OR (duc va)) hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu van lam ((luc va) OR (duc va)) hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu van lam ((luc va) OR (duc va)) hanh dai cua tre*.