Perhaps you should try some spelling variations:
phuong dong » phuong dung, phuong hoang, chuong duong
luan phuong » lan phuong, quang phuong, doan phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, hanh trinh, minh trang
ton ban » toan ban, con ban, hon ban
co ton » co tong, co don, co con

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 sach - ((hanh trang) or (canh tranh)) luan phuong dong co ton ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh trang) OR (canh tranh)) luan phuong dong co ton ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh trang) or (canh tranh)) luan phuong dong co ton ban*.