Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
chung minh » thong minh, chinh minh, hung manh
phung minh » phuong binh, phuong linh, phuong dinh
hanh tranh » canh tranh, hanh trinh, hanh trang
quang dung » quang trung, ung dung, cuong dung
dung cong » dung trong
tan thanh » tran thanh, tang thanh, toan thanh
cong tan » cong tac, cong san, cong thanh
thanh ca » thanh cha, thanh cac, thanh ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: chon ((chung minh) or (phung minh)) - hanh tranh quang dung cong tan thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chon ((chung minh) OR (phung minh)) - hanh tranh quang dung cong tan thanh ca.
• Adding a wildcard symbol may retrieve word variants: chon ((chung minh) or (phung minh)) - hanh tranh quang dung cong tan thanh ca*.