Perhaps you should try some spelling variations:
cong hoang » cong hoan, thong hoang, vuong hoang
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh qua » tranh cua, thanh qua, trinh qua
dung cong » dung trong
hoang van » hang va
qua dung » quang dung, su dung, qua song

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((lieu tinh) or (chieu xanh))) or (may tinh)) - canh tranh qua dung cong hoang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((lieu tinh) OR (chieu xanh))) OR (may tinh)) - canh tranh qua dung cong hoang van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((((lieu tinh) or (chieu xanh))) or (may tinh)) - canh tranh qua dung cong hoang van ban*.