Database: world_1
Question: What are the countries where neither English nor Dutch is the official language ?
SQL: select t1.name from country as t1 join countrylanguage as t2 on t1.code  =  t2.countrycode where t2.language  =  "english" and isofficial  =  "f" union select t1.name from country as t1 join countrylanguage as t2 on t1.code  =  t2.countrycode where t2.language  =  "dutch" and isofficial  =  "f"