Perhaps you should try some spelling variations:
lang thanh » dang thanh, tang thanh, lang thang
tranh cua » doanh cua, manh cua
dang cong » dung cong
dang toan » dan toan, dung toan, dang thanh
dang tran » dang thanh, quang tran, hoang tran
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
cua dang » cua cong, cua ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - canh tranh cua dang cong ((((dang toan) OR (dang tran))) OR (lang thanh)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu tinh - canh tranh cua dang cong ((((dang toan) OR (dang tran))) or (lang thanh)) cao~".
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - canh tranh cua dang cong ((((dang toan) OR (dang tran))) or (lang thanh)) cao*.