Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong dong, truong cong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
thuong con » thuong dong, truong cong, thong cong
thanh pham » thanh phan, thanh pho, thanh hai
tranh cua » doanh cua, manh cua
pham lan » pham luan, pham van, phan lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) OR (chieu sang)) - canh tranh cua ((thuong cong) or (thuong con)) thanh pham lan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - canh tranh cua ((thuong cong) OR (thuong con)) thanh pham lan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sang)) - canh tranh cua ((thuong cong) or (thuong con)) thanh pham lan".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sang)) - canh tranh cua ((thuong cong) or (thuong con)) thanh pham lan*.