Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
hieu va » lieu va, hieu qua
cua duc » cua tuc, cua nuoc, cua quoc
hieu ve » hieu van
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua

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) OR (v nang)) mai hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh vi cua duc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (v nang)) mai hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh vi cua duc~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) mai hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh vi cua duc*.