Selection of addresses in full-text search

There is a base of addresses with a full-text field.

In the field of type value:

Кировский р-н., Мира ул., 44б Кировский р-н., Мира ул., 40а Кировский р-н., Мира ул., 44а Кировский р-н., Мира ул., 42 

To search for addresses built query

 SELECT `id`, `street_id`, `object_id`, `search_string` FROM `addr_houses` WHERE MATCH(search_string) AGAINST("+мира +4*" IN BOOLEAN MODE) LIMIT 10 

The problem is that this query does not look for addresses that have a word shorter than 3 letters, for example, the above query does not select an address

 Кировский р-н., Мира ул., 42 

Also, it is impossible to get the addresses with the request "March 8", but for the "March" it is looking.

OS: Windows 10, DBMS - MariaDB 10.1, InnoDB table engine.

SHOW VARIABLES LIKE 'ft_min_word_len' that the matter is in the established minimum word length, looked like this: SHOW VARIABLES LIKE 'ft_min_word_len'

The value is 4.

Changed in the config to 1, restarted the service, the query began to show the value 1. Now we need to update the full-text index. Found on the Internet 2 options:

 1. REPAIR TABLE table_name QUICK; 2. OPTIMIZE TABLE table_name; 

1. The storage engine for the table doesn't support repair
2. I thought and thought and showed 2 messages Table does not support optimize, doing recreate + analyze instead and status = OK

But after these actions, the search still does not select lines with words shorter than 3 letters.

Amendment: A query like "peace" will find the line with house 42, but not "peace 4", so I don’t know how to formulate the problem accurately, I hope for understanding.

UPD 1:

I tried DROP, ADD

 ALTER TABLE addr_houses DROP INDEX `FULLTEXT_addr_houses_search_string`; ALTER TABLE addr_houses ADD FULLTEXT INDEX `FULLTEXT_addr_houses_search_string` (`search_string`); 

To make sure that this index is used after the deletion, it made a request, for which he received an error like "cant find fulltext index". After adding the index, the sample works in the same way as described above.