Perhaps you should try some spelling variations:
dong thuong » cong thuong, dong thong, dung thuong
dong truong » duong truong, dong trong, dong trung
hanh dung » thanh dung, anh dung, hanh dong
dang tran » dang thanh, quang tran, hoang tran
dung cua » dung luan, dung cho
tran ban » tranh ban, tran van, toan ban
chu van » cuu van, chu han

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 ((ho manh) OR (chu van)) - hanh dung cua ((dong truong) OR (dong thuong)) dang tran ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((ho manh) or (chu van)) - hanh dung cua ((dong truong) OR (dong thuong)) dang tran ban~".
• Adding a wildcard symbol may retrieve word variants: theo ((ho manh) or (chu van)) - hanh dung cua ((dong truong) OR (dong thuong)) dang tran ban*.