Perhaps you should try some spelling variations:
doan thien » hoan thien, doan thi, toan thiet
thien hoat » trien hoat, thien thuat, tien hoa
luan doan » luan hoan, quan doan, luat doanh
tinh dung » tin dung, tinh quang, tinh huong
quan kiem » quan niem, quan kien, khuan kiem
kiem soat » kiem toan
dung qua » duong qua, dung quan, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh dung luan doan thien hoat ) or ( tinh dung qua quan kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan doan thien hoat ) OR ( tinh dung qua quan kiem soat ))*.