SELECT 
  search_phrases 
FROM 
  cscart_ab__search_motivation 
WHERE 
  company_id = 1 
  AND lang_code = 'en' 
  AND TRIM(search_phrases) > ""

Query time 0.00031

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_ab__search_motivation",
      "access_type": "ALL",
      "rows": 4,
      "filtered": 100,
      "attached_condition": "cscart_ab__search_motivation.company_id = 1 and cscart_ab__search_motivation.lang_code = 'en' and trim(cscart_ab__search_motivation.search_phrases) > ''"
    }
  }
}