Perhaps you should try some spelling variations:
thanh nha » thanh nhan, thanh nga, thanh phan
nam thuc » nam thuoc, am thuc, nam tu
thanh ha » thanh hoa, thanh hai, nhanh ha
vu sach » vu bach, su sach, vu khach
cua tre » cua te, cuu tre, cua triet
sach tu » sach thu, cach tu, sach ty
hieu ve » hieu va, hieu van
tu nang » tru nang, tu nong, tu nano
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: vu sach tu nang x hoi. hieu ve ((nam thuc) or (nam thu)) da ((thanh nha) OR (thanh ha)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tu nang x hoi. hieu ve ((nam thuc) OR (nam thu)) da ((thanh nha) OR (thanh ha)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach tu nang x hoi. hieu ve ((nam thuc) or (nam thu)) da ((thanh nha) OR (thanh ha)) cua tre*".