Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lay » thanh lap, thanh tay, thanh lam
cua triet » cua viet, su triet, va triet
cam truc » cau truc, nam truc, lam truoc
truc ban » thuc ban, truc dan, truc van
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
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 ky nang x hoi. hieu ve cam truc ban thanh lay ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x hoi. hieu ve cam truc ban thanh lay ((cuu tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu ve cam truc ban thanh lay ((cuu tre) or (cua triet))*.