Perhaps you should try some spelling variations:
ba truong » xa truong, bo truong, ba trung
truong va » truong dai, truong cao, truong dao
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
va nang » van nang, da nang, cam nang
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
v nang » vu nang, van nang, voi nang
di cua » dai cua, doi cua, de cua
ve ba » ve bao, ve ban, ve va

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: su sach ((v nang) OR (va nang)) xa hoi. hieu ve ba truong va hanh di cua viet~.
• Adding a wildcard symbol may retrieve word variants: su sach ((v nang) or (va nang)) xa hoi. hieu ve ba truong va hanh di cua viet*.