Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
tang quan » nang quan, tong quan, thong quan
tang luan » dung luan
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dien sach - hanh ((tang quan) OR (tang luan)) nhung cong van tuan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo dien sach - hanh ((tang quan) OR (tang luan)) nhung cong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: theo dien sach - hanh ((tang quan) OR (tang luan)) nhung cong van tuan ban*.