Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van chat » cao chat
luan anh » luan danh, tuan anh, lan anh
nang mai » nang ma, nang tai, lang mai
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
va chat » va phat, cao chat, hoa chat
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang mai hoi. hieu ((va chat) or (van chat)) xuc ((ban thanh) or (luan anh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang mai hoi. hieu ((va chat) OR (van chat)) xuc ((ban thanh) OR (luan anh)) vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang mai hoi. hieu ((va chat) or (van chat)) xuc ((ban thanh) or (luan anh)) vi cua tre*.