Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
toc hieu » toc thieu, hoc thieu, thuc hieu
doc hieu » toc thieu, hoc thieu, hoc hien
dan chan » dan gian, dan ca, van chat
cam chan » cam nhan

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

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