Perhaps you should try some spelling variations:
"trieu thi luan van minh doanh" » "trieu thi luan van kinh doanh", "trieu thi luan van minh danh", "trieu thi luan van minh doan", "trieu thi lan van minh doanh", "trieu thi xuan van minh doanh", "trieu thi loan van minh doanh", "thieu thi luan van minh doanh", "tieu thi luan van minh doanh"
"trien thi luan van minh doanh" » "trien thi luan van kinh doanh", "trien thi luan van minh danh", "trien thi luan van minh doan", "tren thi luan van minh doanh", "trien chi luan van minh doanh", "trien khai luan van minh doanh", "trien thi lan van minh doanh", "trien thi xuan van minh doanh", "trien thi loan van minh 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: (("trieu thi luan van minh doanh") OR ("trien thi luan van minh doanh"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"trieu thi luan van minh doanh\") OR (\"trien thi luan van minh doanh\"))".
• Removing quotes may allow a broader search: (( trieu thi luan van minh doanh ) OR ( trien thi luan van minh doanh )).
• Adding a wildcard symbol may retrieve word variants: (("trieu thi luan van minh doanh") OR ("trien thi luan van minh doanh"))*.