Perhaps you should try some spelling variations:
gach ngoai » gach ngoi, dich ngoai
ngoai mang » ngoai cong, ngoai ma
ngan danh » ngan hang, ngan sach, nhan dan
danh khoi » dang khoi, doanh khoa, danh cho
mang khi » bang khi, dang khoi, dang khai
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((so sach) or (bo sach)) ngan danh khoi đong luc ) or ( so gach ngoai mang khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((so sach) OR (bo sach)) ngan danh khoi đong luc ) OR ( so gach ngoai mang khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( ((so sach) or (bo sach)) ngan danh khoi đong luc ) or ( so gach ngoai mang khi đong luc ))*.