Perhaps you should try some spelling variations:
cuong quan » luong quan, vuong quan, luong quang
minh cuong » dinh cuong, manh cuong, minh tuong
hieu luat » hieu qua
van chien » van hien, van hieu, van tien
dung dat » dung va, dung tai
chi hieu » cao hieu, chi tiet, co hieu
quan van » luan van, quan va, quan luan
chien so » chien si, khien so, bien so
dat chi » dat cho, dat thi, dau chi
tin » tinh

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 dat chi hieu luat ) or ( minh cuong quan van chien so ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung dat chi hieu luat ) OR ( minh cuong quan van chien so )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung dat chi hieu luat ) or ( minh cuong quan van chien so ))*.