Per lo scenario attuale puoi farlo usando FIND_IN_SET
ogni volta che devi abbinare le 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)
Dimostrazione di violino
MODIFICA Come da commento di @Ravinder
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)