Perhaps you should try some spelling variations:
dong truong » duong truong, dong trong, dong thuong
dang thanh » dong thanh, dang hanh, hoang thanh
hanh dung » thanh dung, anh dung, hanh dong
dung toan » dung doanh, dung thang, dung thanh
dung cua » dung luan, dung cho
cua dong » chua dong, cua cong, cua dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((ho manh) or (cuu van)) - hanh dung cua dong truong ((dang thanh) or (dung toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((ho manh) OR (cuu van)) - hanh dung cua dong truong ((dang thanh) OR (dung toan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo ((ho manh) or (cuu van)) - hanh dung cua dong truong ((dang thanh) or (dung toan)) cao*.