Perhaps you should try some spelling variations:
van chat » cao chat
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
va chat » va phat, cao chat, hoa chat
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x hoi. hieu ((va chat) OR (van chat)) xuc va hanh dai ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ((va chat) OR (van chat)) xuc va hanh dai ((cua te) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ((va chat) OR (van chat)) xuc va hanh dai ((cua te) or (cuu tre))*".