Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
thong cau » thong cac, thong cap, thong tu
cua dong » chua dong, cua cong, cua dang
hang cau » hang dau, hang ca, nhung cau

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)) - hanh tranh cua dong cong cong ((thong cau) or (hang cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - hanh tranh cua dong cong cong ((thong cau) OR (hang cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (chieu sang)) - hanh tranh cua dong cong cong ((thong cau) or (hang cau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (chieu sang)) - hanh tranh cua dong cong cong ((thong cau) or (hang cau))*.