How do I find words written in Thai with NSRegularExpression
<p>I have a word written in the thai language-->  <code>ความรัก</code>
How do I use NSRegularExpression to match this word?
I tried using the exact word but it is not working.</p>

<p>It is not even working on sites like regex101.com</p>

<p>Here is my code (swift version. But Answers in either swift or obj is appreciated).  The following code is in my playground file. I always get false and never true.</p>

<pre><code>let labelString = "ความรัก"
let regex = try NSRegularExpression(pattern: "ความรัก", options: [])
let rangeOfFirstMatch = regex.rangeOfFirstMatchInString(labelString, options:.ReportProgress, range:NSRange(location: 0, length: labelString.characters.count))
if (!NSEqualRanges(rangeOfFirstMatch, NSRange(location: NSNotFound, length: 0))) {
    print(true)
} else {
    print(false)
}
</code></pre>

<p>If i replace the texts with the word "man" however. I always get true</p>