Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh
nhieu tang » nhiet nang
khong cong » thong cong, khong cang, chong cong
hieu lang » hieu quang, hieu van, biet lang
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (((chieu sang) OR (nhieu tang)))) - canh tranh cua khong cong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (((chieu sang) OR (nhieu tang)))) - canh tranh cua khong cong dan phan tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (((chieu sang) OR (nhieu tang)))) - canh tranh cua khong cong dan phan tu*".