Perhaps you should try some spelling variations:
dong thuong » cong thuong, dong thong, dung thuong
dung phuong » dung thuong, bang phuong, dung chung
thien danh » thien anh, thien dang, thien thanh
canh tran » canh tranh, hanh trang, banh trang
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
hoan » hoang, hoa, toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoan thien danh - canh tran quang ((dung phuong) or (dong thuong)) dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoan thien danh - canh tran quang ((dung phuong) OR (dong thuong)) dan khan cap.
• Adding a wildcard symbol may retrieve word variants: hoan thien danh - canh tran quang ((dung phuong) or (dong thuong)) dan khan cap*.