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SELECT 
  b.variant_name, 
  a.* 
FROM 
  cscart_product_option_variants AS a 
  LEFT JOIN cscart_product_option_variants_descriptions AS b ON b.variant_id = a.variant_id 
  AND b.lang_code = 'vi' 
WHERE 
  1 
  AND a.option_id IN (
    1512, 1503, 1505, 1507, 426, 1501, 1508
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00159

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "read_sorted_file": {
          "filesort": {
            "sort_key": "a.position, a.variant_id",
            "table": {
              "table_name": "a",
              "access_type": "range",
              "possible_keys": ["status", "option_id", "option_id_2"],
              "key": "option_id",
              "key_length": "6",
              "used_key_parts": ["option_id", "status"],
              "rows": 19,
              "filtered": 100,
              "index_condition": "a.option_id in (1512,1503,1505,1507,426,1501,1508) and a.`status` = 'A'"
            }
          }
        }
      },
      {
        "table": {
          "table_name": "b",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "9",
          "used_key_parts": ["variant_id", "lang_code"],
          "ref": ["dev_db.a.variant_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(b.lang_code = 'vi')"
        }
      }
    ]
  }
}

Result

variant_name	variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type	status
Gói quà	519	426	0	20000.000	A	A	A	A
Gói quà (Miễn Phí)	3934	1501	0	0.000	A	A	A	A
Hộp quà kèm diêm và thiệp (MIỄN PHÍ)	3954	1508	0	0.000	A	A	A	A
Miễn phí gói quà	3958	1512	0	0.000	A	A	A	A
Enchant	3936	1503	1	0.000	A	A	A	A
Enchant	3943	1505	1	0.000	A	A	A	A
Enchant	3949	1507	1	0.000	A	A	A	A
Xanadu	3937	1503	2	0.000	A	A	A	A
Xanadu	3944	1505	2	0.000	A	A	A	A
Xanadu	3950	1507	2	0.000	A	A	A	A
Chillin	3938	1503	3	0.000	A	A	A	A
Chillin	3945	1505	3	0.000	A	A	A	A
Chillin	3951	1507	3	0.000	A	A	A	A
Wooden	3939	1503	4	0.000	A	A	A	A
Wooden	3946	1505	4	0.000	A	A	A	A
Wooden	3952	1507	4	0.000	A	A	A	A
Yuque	3940	1503	5	0.000	A	A	A	A
Yuque	3947	1505	5	0.000	A	A	A	A
Yuque	3953	1507	5	0.000	A	A	A	A