If you're interested in replicating a haircut you've seen her with, your best bet is to:
* Find a picture: Search for images of Trisha Lim where her hair looks the way you want it.
* Describe it to your stylist: Take the picture to your hairstylist and explain what you like about the cut (length, layers, bangs, texture, etc.). They can then adapt it to suit your face shape and hair type.
That's the most reliable way to get a similar result.