Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
lang xa » lang ha, dang xay, lang van
xang xa » mang xa, ang xa, dang xay
sach ty » sach y, sach tu, sach thu
cac tac » cac toc, cac bac, cac dac
hanh de » hanh ve
tac va » tac da, tac xa, tuc va
cua te » cua tu

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: thuat sach ty ((xang xa) OR (lang xa)) hoi. hieu viec cac tac va ((hanh de) OR (hanh kem)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty ((xang xa) OR (lang xa)) hoi. hieu viec cac tac va ((hanh de) or (hanh kem)) cua te~".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty ((xang xa) OR (lang xa)) hoi. hieu viec cac tac va ((hanh de) or (hanh kem)) cua te*.