Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
phuong dan » phuong doan, huong dan, phuong lan
canh luan » doanh luan, tranh luan, chinh luan
van nhung » van nhuong, va nhung, van hung
than ban » thanh ban, toan ban, than man

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