Perhaps you should try some spelling variations:
hieu luat » hieu qua
dung cong » dung trong
tin quan » tinh quang, trinh quan, lien quan
van hieu » cao hieu
cong hoa » dong hoa, dong hoc, hang hoa
hoa kieu » ho kieu, hoa kiem, hoa kien
kieu thu » tieu thu, kien thuc
luan » 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 quan luan van hieu luat ) or ( tin dung cong hoa kieu thu ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin quan luan van hieu luat ) OR ( tin dung cong hoa kieu thu ))*.