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SELECT 
  lang.name, 
  lang.value 
FROM 
  cscart_language_values lang 
WHERE 
  lang.lang_code = 'tr' 
  AND lang.name IN (
    'buy_together_fill_the_mandatory_fields', 
    'buy_together_fill_the_mandatory_fields'
  )

Query time 0.00014

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	lang	range	PRIMARY	PRIMARY	392		1	Using index condition