Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
thong doan » thong dan, trong doanh, thong hoang
doan phan » doanh phan, toan phan, dan phan
tranh ve » trinh ve, thanh ve, tranh va
ve thong » he thong, va thong, ve phong
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 (chieu sang)) - canh tranh ve thong thong doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh tranh ve thong thong doan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - canh tranh ve thong thong doan phan cau*.