Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh de » hanh de, thanh ve, thanh do
ky lang » ky dang, ky tang, tay lang
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
de cua » le cua, te cua, dieu cua

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) or (ky nang)) xa hoi. hieu van cam ((xuc va) or (luc va)) thanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky nang)) xa hoi. hieu van cam ((xuc va) OR (luc va)) thanh de cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky lang) or (ky nang)) xa hoi. hieu van cam ((xuc va) or (luc va)) thanh de cua tre*.