Perhaps you should try some spelling variations:
tinh khong » tinh khang, tinh huong, benh khong
quang quan » quang tuan, quang uan, quan quan
khong luan » thong luan, khong quan, khung luan
hieu toan » bieu toan, thien toan, kiem toan
hien soat » thien hoat, kiem soat, bien soan
quan van » quan va, quan luan, quan doan
van hieu » cao hieu
van hien » van tien

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

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