SELECT 
  search_phrases 
FROM 
  vi_ab__search_motivation 
WHERE 
  company_id = 1 
  AND lang_code = 'ru' 
  AND TRIM(search_phrases) > ""

Query time 0.00006

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}