Name the period with matches of 0 0 of portugal
CREATE TABLE table_name_56 (period VARCHAR, matches VARCHAR, country VARCHAR)
SELECT period FROM table_name_56 WHERE matches = "0 0" AND country = "portugal"
### Context: CREATE TABLE table_name_56 (period VARCHAR, matches VARCHAR, country VARCHAR) ### Question: Name the period with matches of 0 0 of portugal ### Answer: SELECT period FROM table_name_56 WHERE matches = "0 0" AND country = "portugal"