Perhaps you should try some spelling variations:
quang dang » quang dung, quang dong, quang hoang
tinh tinh » trinh tinh, tinh ninh, tinh binh
dang kiem » bang kiem, mang kiem, dang dieu
kiem soat » kiem toan
dung hung » dung chung, dung nhung, dung huong
hung phan » huong phan, nhung phan, dung phan
phan hieu » van hieu, phan kien, gian hieu
hieu luat » hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh tinh quang dang kiem soat ) or ( tin dung hung phan hieu luat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh tinh quang dang kiem soat ) OR ( tin dung hung phan hieu luat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh tinh quang dang kiem soat ) or ( tin dung hung phan hieu luat ))*.