SELECT 
  search_phrases 
FROM 
  cscart_ab__search_motivation 
WHERE 
  category_id > 0 
  AND company_id = 0 
  AND lang_code = 'en' 
  AND TRIM(search_phrases) > ""

Query time 0.00075

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "16.72"
    },
    "table": {
      "table_name": "cscart_ab__search_motivation",
      "access_type": "ALL",
      "possible_keys": [
        "PRIMARY"
      ],
      "rows_examined_per_scan": 160,
      "rows_produced_per_join": 1,
      "filtered": "1.00",
      "cost_info": {
        "read_cost": "16.56",
        "eval_cost": "0.16",
        "prefix_cost": "16.72",
        "data_read_per_join": "51"
      },
      "used_columns": [
        "category_id",
        "company_id",
        "lang_code",
        "search_phrases"
      ],
      "attached_condition": "((`s2cart`.`cscart_ab__search_motivation`.`company_id` = 0) and (`s2cart`.`cscart_ab__search_motivation`.`category_id` > 0) and (`s2cart`.`cscart_ab__search_motivation`.`lang_code` = 'en') and (trim(`s2cart`.`cscart_ab__search_motivation`.`search_phrases`) > ''))"
    }
  }
}