Perhaps you should try some spelling variations:
doi cua » dai cua, hoi cua
va xanh » va danh, va hanh, va banh
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach 2, sach vay
va anh » van anh, va danh, va hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach v) or (sach y)) lang xa hoi. hieu vu cham soc ((va xanh) OR (va anh)) doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach y)) lang xa hoi. hieu vu cham soc ((va xanh) OR (va anh)) doi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) or (sach y)) lang xa hoi. hieu vu cham soc ((va xanh) OR (va anh)) doi cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach y)) lang xa hoi. hieu vu cham soc ((va xanh) OR (va anh)) doi cua tre*.