Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
tao khoi » tao hoi, thao khoa, lao khoa
phan dau » phan tu, hang dau
ty sang » ty hang, duy sang, thu sang
hieu vi » hieu voi, hieu va, hieu ve
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: toc sach ((ty sang) OR (ty xang)) tao khoi. hieu vi pham duc va ((thanh lap) OR (phan dau)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((ty sang) OR (ty xang)) tao khoi. hieu vi pham duc va ((thanh lap) or (phan dau)) cua te~".
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty sang) OR (ty xang)) tao khoi. hieu vi pham duc va ((thanh lap) or (phan dau)) cua te*.