Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hong hanh » dong thanh, cong thanh, hong ha
hong anh » hoang anh, dong anh, phuong anh
tuan cao » toan cao, juan cao, quang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) OR (chinh sach)) - hanh tranh cua nhung ((hong anh) or (hong hanh)) tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - hanh tranh cua nhung ((hong anh) OR (hong hanh)) tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chinh sach)) - hanh tranh cua nhung ((hong anh) or (hong hanh)) tuan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chinh sach)) - hanh tranh cua nhung ((hong anh) or (hong hanh)) tuan cao*.