Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu sach » chieu sach, dien sach, te sach
thong cua » thong quan, thong tu, huong cua
lang cua » hang cua, long cua, tang cua
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan

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: theo tieu sach - nhanh ((((lang cua) OR (thong cua))) OR (mang cua)) nhung cong tan phan tu~.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - nhanh ((((lang cua) or (thong cua))) or (mang cua)) nhung cong tan phan tu*.