Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hanh tranh » canh tranh, hanh trinh, hanh trang
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
manh toan » thanh toan, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) OR (hieu lang)) - hanh tranh cua nhung huong ((manh toan) or (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu lang)) - hanh tranh cua nhung huong ((manh toan) OR (tinh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (hieu lang)) - hanh tranh cua nhung huong ((manh toan) or (tinh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (hieu lang)) - hanh tranh cua nhung huong ((manh toan) or (tinh toan)) cau*.