This?
-- sample table
declare @Sample table (countrycode varchar(2), countryalias varchar(255))
-- sample data
insert @Sample
select 'NL', 'nederland' union all
select 'NL', 'netherlands' union all
select 'NL', 'paysbas' union all
select 'US', 'unitedstatesofamerica' union all
select 'US', 'america'
-- show sample data
select * from @Sample
--Also I have a string e.g. "kevin lives in the United States of America".
-- solution
select * from @Sample
where replace('kevin lives in the United States of America',' ','') like '%'+countryalias+'%'
Too old to Rock'n'Roll too young to die.