Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh vai » thanh hai, thanh van, thanh tai
so sach » so sanh, bo sach, co sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
va cap » va cac, va dap, va cao
cuu va » cuu van, cuu ve
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: so sach tu nang x hoi. hieu va cap cuu va ((thanh vai) or (thanh phan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tu nang x hoi. hieu va cap cuu va ((thanh vai) OR (thanh phan)) cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach tu nang x hoi. hieu va cap cuu va ((thanh vai) or (thanh phan)) cua tre*.