Perhaps you should try some spelling variations:
minh quang » tinh quang, dinh quang, minh hoang
quang tran » quang tuan, quang trung, quang thanh
huong ltan » huong lan, huong loan, phuong loan
hieu suat » hieu luat, hieu qua
kiem soat » kiem toan
tran van » luan van
van hieu » cao hieu
ltan van » luan van, tan van, lan van
van kiem » va kiem, van kien, van hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( minh quang tran van hieu suat ) or ( anh huong ltan van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( minh quang tran van hieu suat ) OR ( anh huong ltan van kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( minh quang tran van hieu suat ) or ( anh huong ltan van kiem soat ))*.