Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
sanh nganh » anh ngan, dang nganh, sach ngan
nganh cong » nhanh chong, thanh cong
sach nhanh » cach nhanh, sach nha, sach tranh
khong khi » khong he
cong khi » cong thai, co khi, cong ha
so sanh » do sanh
su sach » so sach, vu sach

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sanh nganh cong khi đong luc ) OR ( su sach nhanh khong khi đong luc ))~.
• Adding a wildcard symbol may retrieve word variants: (( so sanh nganh cong khi đong luc ) or ( su sach nhanh khong khi đong luc ))*.