Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach vu » sach va, sach tu, sach uu
vu nang » vuc nang, va nang, vu dang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua

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 vu nang xa hoi. hieu va cam xuc ((ban hang) OR (ngan hang)) vi cua triet~.
• Adding a wildcard symbol may retrieve word variants: su sach vu nang xa hoi. hieu va cam xuc ((ban hang) or (ngan hang)) vi cua triet*.