Perhaps you should try some spelling variations:
chat tuu » chat huu, chat cua, chat xuc
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
sach tu » sach thu, cach tu, sach ty
cuu tre » cau tren, cau treo
tuu va » tu va, cuu va, tru va
x hoi » xa hoi, o hoi, x ho

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: thuat ((sach ly) OR (sach tu)) nang x hoi. hieu ve chat tuu va hanh vi ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) or (sach tu)) nang x hoi. hieu ve chat tuu va hanh vi ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) or (sach tu)) nang x hoi. hieu ve chat tuu va hanh vi ((cua tre) OR (cuu tre))*.