Perhaps you should try some spelling variations:
sanh nganh » anh ngan, dang nganh, sach ngan
nganh hoa » thanh hoa, khanh hoa, danh hoa
nhan cong » nhanh cong, phan cong, nhap cong
cong khi » cong thai, khong khi, co khi
so sanh » do sanh
hoa khi » hoa phi, hoa hi, hoa thi
su han » su phan, su hoan, su van
su cao » cu cao, vu cao, su co

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 hoa khi đong luc ) OR ( ((su han) OR (su cao)) nhan cong khi đong luc ))~.
• Adding a wildcard symbol may retrieve word variants: (( so sanh nganh hoa khi đong luc ) or ( ((su han) or (su cao)) nhan cong khi đong luc ))*.