Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
tranh cua » doanh cua, manh cua
cua nhung » va nhung
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 sang) or (hieu lang)) - canh tranh cua nhung huong dan ((phan cau) OR (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - canh tranh cua nhung huong dan ((phan cau) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu lang)) - canh tranh cua nhung huong dan ((phan cau) OR (phan cac))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu lang)) - canh tranh cua nhung huong dan ((phan cau) OR (phan cac))*.