Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
bao suc » bao luc, cao suc, bao thuc
hieu ve » hieu va, hieu van
te sach » toc sach
mai hoi » mai khoi, dai hoi, lai hoi
sach v » sach va, sach y, sach 2
ma hoi » xa hoi, ma hoa, me hoi
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua
ve bao » te bao, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach v nang ((ma hoi) OR (mai hoi)). hieu ve bao suc ((va hanh) or (va thanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ((ma hoi) OR (mai hoi)). hieu ve bao suc ((va hanh) OR (va thanh)) di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang ((ma hoi) OR (mai hoi)). hieu ve bao suc ((va hanh) or (va thanh)) di cua triet*".