Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
theo dat » theo dau, theo luat, tren dat
dat sach » mat sach, dat khach, nam sach
anh tang » anh bang, anh dang, anh nang
anh dung » anh dong, anh huong, sach dung
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo dat sach - ((anh tang) or (anh dung)) cua nhung cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dat sach - ((anh tang) OR (anh dung)) cua nhung cong dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo dat sach - ((anh tang) or (anh dung)) cua nhung cong dan ((toan cau) or (toan ban))*.