Perhaps you should try some spelling variations:
tranh viet » tran viet, trinh viet, trang viet
viet chung » viet hung, viet phuong, viet thuong
hieu lang » chieu sang, hieu quang, nhieu tang
cong dang » cong dong, cong dung, cong danh
thanh hai » thanh phan, thanh hoa, thanh san
cong dan » cong san, cong tan, huong dan
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - canh tranh viet chung ((cong dan) OR (cong dang)) thanh hai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - canh tranh viet chung ((cong dan) OR (cong dang)) thanh hai*".