Perhaps you should try some spelling variations:
phuong luan » phuong lan, phong luan, phuong loan
dinh phuong » dinh huong, dinh thuong, dinh phong
sinh tong » sinh trong, sinh cong, sinh ton
tong luan » tang luan, dung luan, hang luan
kiem soat » kiem toan
van kiem » va kiem, van kien, van hieu
luan va » luat va
va dien » va dieu, va lien, mai dien
dien o » den o, dien y, dien hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( sinh tong luan va dien o ) or ( dinh phuong luan van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( sinh tong luan va dien o ) OR ( dinh phuong luan van kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( sinh tong luan va dien o ) or ( dinh phuong luan van kiem soat ))*.