Perhaps you should try some spelling variations:
trien hoat » tien hoa
sang quang » dang quang, hang quang, tang quang
van trien » van tien, va trien, van tren
tinh sang » tinh quang, tinh trang, trinh san
kiem soat » kiem toan
huy kiem » huy tiem, phuc kiem, thuy kieu
luan » quan, lan

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 van trien hoat ) or ( tinh sang quang huy kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van trien hoat ) OR ( tinh sang quang huy kiem soat ))*.