Perhaps you should try some spelling variations:
dung luong » dung thuong, dung phuong, dung truong
luong xuan » luong quan, luong quang, luong cua
hieu luat » hieu qua
xuan kien » xuan dien, xuan kieu, xuan vien
kien soan » bien soan, kiem toan, kiem soat
van hieu » cao hieu
tin » tinh
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: (( tin dung luan van hieu luat ) or ( trinh dung luong xuan kien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van hieu luat ) OR ( trinh dung luong xuan kien soan )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van hieu luat ) or ( trinh dung luong xuan kien soan ))*.