Left join becomes inner join when where clauses are added

I am trying to join all the elements in one table to a portion of another table.  The join happens, then the restrictive where clause; I am trying to get the restrictive where clause to run first, then the join..  I want to filter out the stuff I don't want from tables AL2 and AL3, and THEN join them to AL1 with an outer join.  If I put (+) next to the AL2 and AL3 and clauses, the query works, but it will not let me save the format (it eliminates the (+)'s.  What is the current version of SQL syntax for this?

SELECT AL1.PORTFOLIO_CODE,

AL2.PORTFOLIO_GROUP_ID,

AL1.PORTFOLIO_NAME,

AL1.PORTFOLIO_TYPE_CODE,

AL3.CODE_DESCRIPTION

FROM A.ENTITY_VIEW AL1, A.ENTITY_LIST_VIEW AL2, A.CODES_VIEW AL3

WHERE (AL1.PORTFOLIO_CODE = AL2.PORTFOLIO_CODE(+))

AND (AL1.ENTITY_ID_UNTRIMMED = AL3.CODE_VALUE(+))

AND ( ( AL2.PORTFOLIO_GROUP_ID ='DLYPRICE'       Note: can add (+) after ID and it works.

AND AL3.CODE_INTERFACE ='PROD ')                Note: same here after interface

AND AL3.CODE_TYPE_SHORT_DESC ='PORTPRICSRCE ')   Note: same here after desc