Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung cong » dung cong, thong cong, hang cong
cong tan » cong tac, cong san, cong thanh
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban
lang va » lang van, hang va, lang ha

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: ho ((chieu sach) OR (chinh sach)) - nhanh lang va nhung cong tan ((toan tai) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chinh sach)) - nhanh lang va nhung cong tan ((toan tai) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chinh sach)) - nhanh lang va nhung cong tan ((toan tai) or (toan tap))*.