Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
danh di » danh du, xanh di, danh dien
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ma hoi » xa hoi, ma hoa, me hoi
ve hoc » te hoc, va hoc, vi hoc
di cua » dai cua, doi cua, de cua
nuoc » quoc, duoc, ngoc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty nang) OR (ty hang)) ((ma hoi) OR (mai hoi)). hieu ve hoc nuoc va danh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) or (ty hang)) ((ma hoi) or (mai hoi)). hieu ve hoc nuoc va danh di cua tre*.