Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
nho hieu » nha hieu, nho sieu, nhu hieu
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - hanh tranh cua nhung cong ((xuan toan) or (((dan than) OR (dan chan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - hanh tranh cua nhung cong ((xuan toan) OR (((dan than) OR (dan chan)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho hieu lang - hanh tranh cua nhung cong ((xuan toan) or (((dan than) OR (dan chan)))) cau".
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - hanh tranh cua nhung cong ((xuan toan) or (((dan than) OR (dan chan)))) cau*.