Perhaps you should try some spelling variations:
nhuong phuong » nhung phuong, thuong phuong, truong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
van nhuong » van chuong, van phuong, van huong
canh luan » doanh luan, tranh luan, chinh luan
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sang) or (chiet tach)) - canh luan van nhuong phuong ((dan than) OR (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (chiet tach)) - canh luan van nhuong phuong ((dan than) OR (ban than)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (chiet tach)) - canh luan van nhuong phuong ((dan than) OR (ban than)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (chiet tach)) - canh luan van nhuong phuong ((dan than) OR (ban than)) ban*.