Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
su sach » so sach
vu sach » vu bach, vu khach
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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) OR (vu sach)) y nang ma hoi. hieu van cam xuc ((va thanh) OR (ban thanh)) dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) y nang ma hoi. hieu van cam xuc ((va thanh) OR (ban thanh)) dai cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) y nang ma hoi. hieu van cam xuc ((va thanh) OR (ban thanh)) dai cua triet*.