Perhaps you should try some spelling variations:
tinh huong » dinh huong, anh huong
trien hoat » tien hoa
kiem soat » kiem toan
van trien » van tien, va trien, van tren
dung dan » dung dat, dung san, tung dan
van kiem » va kiem, van kien, van hieu
dan van » dang van, doan van, dao van

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 dan van kiem soat ) or ( ((tinh huong) or (tinh quang)) luan van trien hoat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung dan van kiem soat ) OR ( ((tinh huong) OR (tinh quang)) luan van trien hoat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung dan van kiem soat ) or ( ((tinh huong) or (tinh quang)) luan van trien hoat ))*.