Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh cua » doanh cua, manh cua
hoang hai » hoang thi, hoang van
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
cong hai » cong thai, cong ha, cong tac
tap cac » tai cac, tap trac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - canh tranh cua dang ((cong hai) OR (hoang hai)) tap cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - canh tranh cua dang ((cong hai) OR (hoang hai)) tap cac".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh tranh cua dang ((cong hai) OR (hoang hai)) tap cac*.