Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung cong » thong cong, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
tung tuan » trung tuan, hung tuan, quang tuan
dung cong » dung trong
vang khan » dang khanh, van khanh, van khang
van phan » van phong, van thanh, luan 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: doi chieu sach - thanh tung tuan ((nhung cong) OR (dung cong)) ((vang khan) OR (van phan)) cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh tung tuan ((nhung cong) OR (dung cong)) ((vang khan) or (van phan)) cap~".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung tuan ((nhung cong) OR (dung cong)) ((vang khan) or (van phan)) cap*.