For dit aktuelle scenarie kan du gøre det ved at bruge FIND_IN_SET
hver gang du skal matche item_features
SELECT * FROM
table1
WHERE
item_types
IN (8) AND FIND_IN_SET(4,item_features)
AND FIND_IN_SET(5,item_features)
AND FIND_IN_SET(10,item_features)
Fiddle Demo
REDIGER Ifølge @Ravinders kommentar
SELECT * FROM
table1
WHERE
FIND_IN_SET(8,item_types)
AND FIND_IN_SET(4,item_features)
AND FIND_IN_SET(5,item_features)
AND FIND_IN_SET(10,item_features)