Perhaps you should try some spelling variations:
thien van » thi van
vay doanh » van doanh, ly doanh, voi doanh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
tuc vay » tuc va, tu vay, tuc xay
van cua » vang cua, dan cua, nan cua
ban cua » ban quan
x hoi » xa hoi, o hoi, x ho

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: te sach ky nang x hoi. ((hieu va) OR (thien van)) cac tuc vay doanh ((van cua) OR (ban cua)) viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. ((hieu va) or (thien van)) cac tuc vay doanh ((van cua) OR (ban cua)) viet~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. ((hieu va) or (thien van)) cac tuc vay doanh ((van cua) OR (ban cua)) viet*.