Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
va chat » van chat, va phat, cao chat
ve chat » van chat
cua tre » cua te, cuu tre, cua triet
sach tu » sach thu, cach tu, sach ty
va cham » va tham
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach tu nang xa hoi. hieu ((((va cham) OR (va chat))) or (ve chat)) duc va thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach tu nang xa hoi. hieu ((((va cham) OR (va chat))) OR (ve chat)) duc va thanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach tu nang xa hoi. hieu ((((va cham) OR (va chat))) or (ve chat)) duc va thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach tu nang xa hoi. hieu ((((va cham) OR (va chat))) or (ve chat)) duc va thanh dai cua tre*.