I don’t know if this has been shared on the forum before, but I had the chance to review the tool recommended by Mr. Serbay at the UX event in Istanbul. I think it is quite successful and I recommend you try it.
** http://keywordtool.io/ **
Select Google.com.tr and Turkish (Türk) from the side menu and enter a keyword; it will offer you new keyword ideas, both high-volume and low-volume, related to the keyword you entered. The most important feature of this tool is that it allows for targeting; in short, even if we type in a global keyword, we can see keywords searched only in Turkey.
