Perhaps you should try some spelling variations:
trinh quang » tinh quang, tranh quang, trinh dung
trinh quan » tinh quang, trinh luat, trinh han
tinh dung » trinh dung, tin dung, tinh quang
hieu luat » hieu qua
kiem soat » kiem toan
luan cao » juan cao, luan bao, quang cao
van kiem » va kiem, van kien, van hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung luan cao hieu luat ) or ( ((trinh quan) or (trinh quang)) luan van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung luan cao hieu luat ) OR ( ((trinh quan) OR (trinh quang)) luan van kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung luan cao hieu luat ) or ( ((trinh quan) or (trinh quang)) luan van kiem soat ))*.