Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
dang quan » dang quang, nang quan, dan quan
dung quan » dung quang, dung luan, luong quan
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
toan ban » van ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - anh ((dang quan) OR (dung quan)) dung cong manh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - anh ((dang quan) OR (dung quan)) dung cong manh ((toan tap) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - anh ((dang quan) OR (dung quan)) dung cong manh ((toan tap) or (toan ban))*".