Perhaps you should try some spelling variations:
sach vay » sach va, sach hay, sach nay
xanh doi » xanh di, thanh doi, tinh doi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va xanh » va danh, va hanh, va anh
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
sach 2 » sach y
nang o » nang co, nang ho, nang ro
soc va » hoc va, loc va, doc va
o hoi » co hoi, o hoc, o hai

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 vay) or (sach 2)) nang o hoi. hieu ve cham soc va xanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach vay) OR (sach 2)) nang o hoi. hieu ve cham soc va xanh doi cua tre*.