Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nhung cong » dung cong, thong cong, hang cong
cong tren » dong tren, cong ren, rong tren
hung cong » hung cuong, phung cong, dung cong
ban phan » ban phap, van phan, ban than
phan cau » phan dau, phan cac, phan tu

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) or (chiet tach)) - thanh cong tren ((hung cong) OR (nhung cong)) ban phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chiet tach)) - thanh cong tren ((hung cong) OR (nhung cong)) ban phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chiet tach)) - thanh cong tren ((hung cong) OR (nhung cong)) ban phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chiet tach)) - thanh cong tren ((hung cong) OR (nhung cong)) ban phan cau*.