Perhaps you should try some spelling variations:
thien van » thi van
ban thanh » ban hanh, ban hang
lam duoc » nam duoc, luat duoc, lam thuoc
duoc ban » duc ban, quoc ban, buoc ban
tu sach » thu sach, su sach, te sach
van lam » van nam
tai cua » thai cua, tri cua, dai cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi

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: tu sach y nang ((ma hoi) OR (ma hoa)). thien van lam duoc ban thanh ((tai cua) OR (tai cuc)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang ((ma hoi) OR (ma hoa)). thien van lam duoc ban thanh ((tai cua) or (tai cuc)) tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang ((ma hoi) OR (ma hoa)). thien van lam duoc ban thanh ((tai cua) or (tai cuc)) tre*.