Perhaps you should try some spelling variations:
nhanh dung » nhanh dong, hanh dung, nhanh hung
nhung cong » dung cong, thong cong, hang cong
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
thi nhung » thi nang, thi hong, thi huong
dung thi » dung tai, dung tri, dung chi
cong anh » cong danh, dong anh, hong anh
tuan cau » quan cau, tuan cu, thuan cam
toan cau » toan cao, toan ban, toan tap

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 - nhanh dung thi nhung cong anh ((tuan cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dien sach - nhanh dung thi nhung cong anh ((tuan cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: theo dien sach - nhanh dung thi nhung cong anh ((tuan cau) or (toan cau))*.