Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
canh manh » cach mang, van manh, anh anh
lanh manh » lanh tranh, lan anh, van manh
cua nhung » va nhung
cong danh » cuong danh, cong dan, cong thanh
danh phan » doanh phan, danh nhan, danh phap
doi hieu » doi chieu, doc hieu, doi hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - ((((canh manh) OR (canh tranh))) or (lanh manh)) cua nhung cong danh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - ((((canh manh) OR (canh tranh))) OR (lanh manh)) cua nhung cong danh phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi hieu lang - ((((canh manh) OR (canh tranh))) or (lanh manh)) cua nhung cong danh phan tu".
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - ((((canh manh) OR (canh tranh))) or (lanh manh)) cua nhung cong danh phan tu*.