Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trang » hanh trang, banh trang, thanh trang
thong cong » trong cong, tong cong, thong thong
dang cong » dung cong
doan phan » doanh phan, toan phan, dan phan
ho chieu » theo chieu, hoc thieu, doi chieu
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((canh trang) OR (canh tranh)) va ((thong cong) or (dang cong)) doan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((canh trang) OR (canh tranh)) va ((thong cong) OR (dang cong)) doan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((canh trang) OR (canh tranh)) va ((thong cong) or (dang cong)) doan phan cac".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((canh trang) OR (canh tranh)) va ((thong cong) or (dang cong)) doan phan cac*.