Perhaps you should try some spelling variations:
"tac gia đoat giai nobel kinh te 2005" » "tac gia đoat giai nobel kinh tue 2005", "tac gia đoat giai nobel kinh ke 2005", "tac gia đoat giai nobel kinh te 2008", "tac gia đoat giai novel kinh te 2005", "tac gia đoat giai nobel minh te 2005"
"tac gia đoat giai nobel dinh te 2005" » "tac gia đoat giai nobel dinh tue 2005", "tac gia đoat giai nobel dinh ke 2005", "tac gia đoat giai nobel dinh te 2008", "tac gia đoat giai nobel dich te 2005", "tac gia đoat giai nobel dinh ve 2005", "tac gia đoat giai nobel dinh tu 2005", "tac gia đoat giai novel dinh te 2005"

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: (("tac gia đoat giai nobel kinh te 2005") OR ("tac gia đoat giai nobel dinh te 2005"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"tac gia đoat giai nobel kinh te 2005\") OR (\"tac gia đoat giai nobel dinh te 2005\"))".
• Removing quotes may allow a broader search: (( tac gia đoat giai nobel kinh te 2005 ) OR ( tac gia đoat giai nobel dinh te 2005 )).
• Adding a wildcard symbol may retrieve word variants: (("tac gia đoat giai nobel kinh te 2005") OR ("tac gia đoat giai nobel dinh te 2005"))*.