You can't have multiple where clauses. On the other hand you may have multiple predicates in one where clause.
e.g.
$result = @mysql_query("SELECT id,title,company,country,email FROM jobs WHERE approve=1 or approve = 2 order by id desc LIMIT 3") or die ("could not read news database");
or
$result = @mysql_query("SELECT id,title,company,country,email FROM jobs WHERE approve=1 and country = 'SWEDEN' order by id desc LIMIT 3") or die ("could not read news database");