Perhaps you should try some spelling variations:
dieu hien » dieu khien, dieu kien, bieu hien
doanh dan » doanh ban, doanh van, doanh dao
thu sach » tu sach, thuat sach, thuoc sach
hien cau » khien cau, thien cau, hien cac
dan cua » dan ca, ban cua, dai cua
cua chu » sua chua
tang ma » mang may, tang van
sach 7 » sach y, sach 2
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
ma hoi » mai hoi, xa hoi, ma hoa
7 tang » 6 tang

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: thu sach 7 tang ma hoi. dieu hien cau ((xuc va) OR (tuc va)) doanh dan cua chu~.
• Adding a wildcard symbol may retrieve word variants: thu sach 7 tang ma hoi. dieu hien cau ((xuc va) or (tuc va)) doanh dan cua chu*.