Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
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
danh toan » manh toan, dan toan, dang toan
anh toan » manh toan, anh tuan, thanh toan

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

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