Perhaps you should try some spelling variations:
tinh huong » dinh huong, anh huong
trien hoat » tien hoa
dung land » dung luan, dung lam, dung san
kiem soat » kiem toan
van trien » van tien, va trien, van tren
land van » lang van, lan van, dang van
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: (( tin dung land 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 land van kiem soat ) OR ( ((tinh huong) OR (tinh quang)) luan van trien hoat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung land van kiem soat ) or ( ((tinh huong) OR (tinh quang)) luan van trien hoat ))".
• Adding a wildcard symbol may retrieve word variants: (( tin dung land van kiem soat ) or ( ((tinh huong) OR (tinh quang)) luan van trien hoat ))*.