user: Question: What was the outcome of the match against Nguyen Tien Minh in the Bulgaria Open?
Columns: ['Outcome', 'Year', 'Tournament', 'Opponent', 'Score']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Winner', 1997.0, 'Korea International', 'Yap Yong Jyen', '11–15, 15–11, 15–4']
SQL:

assistant: SELECT "Outcome" FROM "Table" WHERE "Opponent" = 'Nguyen Tien Minh' AND "Tournament" = 'Bulgaria Open';