Perhaps you should try some spelling variations:
sau chan » cau chan, mau chan, san chang
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
su chao » su cao
sach ky » sac ky, sach y, sach ty
loi roi » loi noi, lai roi, voi roi
lai hoi » dai hoi, lai hoa, lai roi
ky sang » ky nang, ky dang, ky tang
vi cua » vai cua, di cua
cua te » cua tu
xu va » xu van, tu va, su va

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 sang ((lai hoi) or (loi roi)). hieu ((su chao) or (sau chan)) xu va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang ((lai hoi) OR (loi roi)). hieu ((su chao) OR (sau chan)) xu va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ((lai hoi) or (loi roi)). hieu ((su chao) or (sau chan)) xu va hanh vi cua te*.