Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chua dong » cua dong, ha dong, huy dong
khi sach » khi sac, khoa sach, khau sach
hoa dong » hoat dong, ha dong, hoa cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi sach - hanh tranh ((chua dong) or (hoa dong)) cong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi sach - hanh tranh ((chua dong) OR (hoa dong)) cong dan than cap.
• Adding a wildcard symbol may retrieve word variants: doi khi sach - hanh tranh ((chua dong) or (hoa dong)) cong dan than cap*.