Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh va » tranh van, trang va, trinh va
cong san » cong tac
san phan » san pham, van phan, sat phan
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 ((((hieu manh) or (chieu xanh))) or (chieu sach)) - canh tranh va nhung cong san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu manh) OR (chieu xanh))) OR (chieu sach)) - canh tranh va nhung cong san phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) or (chieu xanh))) or (chieu sach)) - canh tranh va nhung cong san phan cau*.