Perhaps you should try some spelling variations:
tinh khong » tinh khang, tinh huong, benh khong
khong quan » thong quan, hong quan, thong quang
trinh cong » trinh dung
kiem soat » kiem toan
cong quan » cuong quan, cong quang, tong quan
luan hieu » luan tieu, luan dieu, luan thiet
hieu luat » hieu qua
quan dat » quan sat, qua dat, quan dac
dat kiem » bat kiem, dat hiem, sat kiem

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh khong quan dat kiem soat ) or ( trinh cong quan luan hieu luat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh khong quan dat kiem soat ) OR ( trinh cong quan luan hieu luat ))*.