Perhaps you should try some spelling variations:
phuong song » phuong hoang, phuong duong, phuong luong
phuong dong » phuong dung, phuong hoang, chuong duong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
van thoai » van hoai, van thai, than thoai
thoai cac » tai cac, thong cac, tho cac
tranh va » tranh van, trang va, trinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu sach)) - canh tranh va ((phuong song) OR (phuong dong)) van thoai cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - canh tranh va ((phuong song) OR (phuong dong)) van thoai cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sach)) - canh tranh va ((phuong song) OR (phuong dong)) van thoai cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - canh tranh va ((phuong song) OR (phuong dong)) van thoai cac*.