Perhaps you should try some spelling variations:
thuoc ma » hoc ma, duoc ma
hieu van » hieu va, thien van, lieu va
thuoc va » thuc va, thuong va, thuoc tai
te sach » toc sach
bao cua » ban cua, bai cua, bao lua
sach ky » sac ky, sach y, sach ty
van lam » van nam
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ba cua » ban cua, bai cua, bat 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: te sach ky lang xa hoi. hieu van lam ((thuoc va) OR (thuoc ma)) dinh ((ba cua) OR (bao cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. hieu van lam ((thuoc va) or (thuoc ma)) dinh ((ba cua) OR (bao cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu van lam ((thuoc va) or (thuoc ma)) dinh ((ba cua) OR (bao cua)) tre*.