Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
cham tuc » nham thuc, pham thuc, tham thuc
thi nang » thi cong, ki nang, thi hanh
thu sach » thuat sach, thuoc sach, thu hoach
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
tu sach » te sach, tu cach, vu sach
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) OR (thu sach))) or (su sach)) thi nang x hoi. hieu ve cham tuc va hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (thu sach))) OR (su sach)) thi nang x hoi. hieu ve cham tuc va hanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (thu sach))) or (su sach)) thi nang x hoi. hieu ve cham tuc va hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (thu sach))) or (su sach)) thi nang x hoi. hieu ve cham tuc va hanh lai cua triet*.