Enhance simplify to reduce ((A OR D) AND (A OR C) AND A AND B) to (A AND B)

materialized view: 
select 'a',empid,deptno,salary as s from emps where (replace(name,'e','a') is not null or replace(name,'a','c') is not null) 
and (replace(name,'c','b') is not null or replace(name,'n','d') is not null)

sql:  
select salary +1 as s,deptno from emps where
replace(name,'c','b')is not null and replace(name,'a','c') is not null and salary>10

The sql will not be rewritten by materialized view because when splitFilter, 
$3 > 10 and REPLACE($2, 'a', 'c') is not null and REPLACE($2, 'c', 'b') is not null and  (REPLACE($2, 'a', 'c') is not null or REPLACE($2, 'e', 'a') is not null) 
and (REPLACE($2, 'c', 'b') is not null or REPLACE($2, 'n', 'd') is not null)

can not be simplified to  
$3 > 10 and REPLACE($2, 'a', 'c') is not null and REPLACE($2, 'c', 'b') is not null 


materialized view:
select empid,deptno,salary as s from emps where 
(replace(name,'e','a') ='aaa' or replace(name,'a','c') ='aaa') 
and 
(replace(name,'c','b') ='aaa' or replace(name,'n','d') ='aaa')

sql:
select salary  as s,deptno from emps where
replace(name,'c','b') ='aaa' is not null 
and replace(name,'a','c') ='aaa'

This case also can not be rewritten.