Perhaps you should try some spelling variations:
quang thanh » quan thanh, hoang thanh, muong thanh
trien hoat » tien hoa
thanh van » thanh san, thanh toan, thanh phan
van trien » van tien, va trien, van tren
kiem soat » kiem toan
dinh lua » dinh cua, dinh luc, dinh xuan
hanh qua » thanh qua, hanh sua, hanh cua
quan van » luan van, quan va, quan luan
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: (( tran quang thanh van trien hoat ) or ( ((dinh lua) or (hanh qua)) quan van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tran quang thanh van trien hoat ) OR ( ((dinh lua) OR (hanh qua)) quan van kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tran quang thanh van trien hoat ) or ( ((dinh lua) or (hanh qua)) quan van kiem soat ))*.