Perhaps you should try some spelling variations:
chau triet » cau triet, cua triet, cau trieu
voi nang » voi hang, hoi nang, voi rang
hanh lai » hanh lam, hanh tai, thanh lap
su sach » so sach, vu sach
hieu vu » hieu va, hieu ve, hieu su
vu nang » vuc nang, va nang, vu dang
va hanh » van hanh, va thanh, va danh
v nang » va nang, van nang, vuc nang
luc va » duc va, tuc va, loc va

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 ((v nang) OR (voi nang)) xa hoi. hieu vu nang luc va hanh lai chau triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((v nang) OR (voi nang)) xa hoi. hieu vu nang luc va hanh lai chau triet".
• Adding a wildcard symbol may retrieve word variants: su sach ((v nang) OR (voi nang)) xa hoi. hieu vu nang luc va hanh lai chau triet*.