Perhaps you should try some spelling variations:
tinh khong » tinh khang, tinh huong, benh khong
khong quan » thong quan, hong quan, thong quang
tich nang » tich van, tin nang
nang xuat » nang suat, hang xuat, nang xuan
kiem soat » kiem toan
quan doi » quan tri, quan li
doi kiem » hoi kiem, doi kien, thi kiem
le dan » ke dan
va le » va de, vu le

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: (( tich nang xuat va le dan ) OR ( tinh khong quan doi kiem soat ))~.
• Adding a wildcard symbol may retrieve word variants: (( tich nang xuat va le dan ) or ( tinh khong quan doi kiem soat ))*.