To answer your question, check with a real estate lawyer familiar with the law in Norway. Some countries have very strict limits on who (especially foreigners) can purchase property. Others--such as the United States--are very lax. You'd have to check with someone familiar with Norway to get a clear answer.
As Don pointed out, it is difficult to know what Lexicon you are working from.
One could assume that 'Turkish people," as used in your question, refers to citizens living in Turkey Texas. These Texas citizens can buy in what ever country permits such a purchase. Very few countries have such liberal purchase opportunities as the USA.
Now, if you wanna buy in Norway, you may wanna contact someone knowledgeable of real estate law in Norway.