Table schema:
CREATE TABLE table_name_34 (gold INTEGER, silver VARCHAR, nation VARCHAR, bronze VARCHAR, total VARCHAR)

Question: How many golds have a Bronze of 0, a Total larger than 1, a Nation of chad, and a Silver larger than 0?
SQL: SELECT SUM(gold) FROM table_name_34 WHERE bronze = 0 AND total > 1 AND nation = "chad" AND silver > 0