Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong tan » cong tac, cong san, cong thanh
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: ho ((hieu lang) or (chieu sach)) - thanh tung cua nhung cong tan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sach)) - thanh tung cua nhung cong tan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sach)) - thanh tung cua nhung cong tan ((toan tap) or (toan ban))*.