Perhaps you should try some spelling variations:
thanh dinh » thanh binh, thanh tinh, thanh vinh
cu triet » cua triet, cau triet, su triet
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
xua ban » xuat ban, cua ban, mua ban
qua ban » cua ban, qua quan
dinh cu » dinh cuu, dinh chuc, dinh chau
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
va nam » van nam, ha nam, va nay
o hoi » co hoi, o hoc, o hai

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 y nang o hoi. hieu va nam ((xua ban) OR (qua ban)) thanh dinh cu triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang o hoi. hieu va nam ((xua ban) OR (qua ban)) thanh dinh cu triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang o hoi. hieu va nam ((xua ban) OR (qua ban)) thanh dinh cu triet*.