Perhaps you should try some spelling variations:
"dieu trinh luan van kinh doanh" » "tieu trinh luan van kinh doanh", "dieu tri luan van kinh doanh", "diep tinh luan van kinh doanh", "dieu trinh luat van kinh doanh", "dieu trinh quan van kinh doanh", "dieu trinh han van kinh doanh", "dieu trinh luan va kinh doanh", "dieu trinh luan van minh doanh", "dieu trinh luan van dinh doanh"
"dieu thi luan lan chinh doanh" » "dieu thi luan luan chinh doanh", "dieu thi luan van chinh doanh", "dieu thi luan hanh chinh doanh", "dieu tri luan lan chinh doanh", "sieu thi luan lan chinh doanh", "dien thi luan lan chinh doanh", "dieu thi lan lan chinh doanh", "dieu thi xuan lan chinh doanh", "dieu thi loan lan chinh doanh", "dieu thi luan san chinh doanh", "dieu thi luan han chinh doanh", "dieu thi luan ban chinh doanh"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("dieu trinh luan van kinh doanh") or ("dieu thi luan lan chinh doanh"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("dieu trinh luan van kinh doanh") OR ("dieu thi luan lan chinh doanh")).
• Removing quotes may allow a broader search: (( dieu trinh luan van kinh doanh ) or ( dieu thi luan lan chinh doanh )).
• Adding a wildcard symbol may retrieve word variants: (("dieu trinh luan van kinh doanh") or ("dieu thi luan lan chinh doanh"))*.