SELECT Mysql with wrong result

Let's take the table below as an example:

id  empresa  forneedor
    1   10       105
    2   10       102
    3   10       105
    4   10       112
    5   10       105

Using business and vendor as indexes.

Making SELECT * FROM table WHERE empresa = 10; - > returns 5 rows which is expected.

Making SELECT * from table WHERE fornecedor = 105; - > returns 3 rows which is expected.

Making SELECT * from table WHERE empresa = 10 AND fornecedor = 105; - > returns only 1 row, not result expected.

The table is in the INNODB format

I already used the OTPIMIZE TABLE command, but it did not solve.

Does anyone have any idea where the problem is?

I have already detected that the problem is occurring with partitioned tables and index_merge. I think it's a problem similar to this link .