Almost by definition someone who leaves their home country to live abroad is not someone who is seeking close personal bonds with anyone.
However, some want this friendship, some need it and others like it, others are more lonesome in their lifes outlook.
If you want friendship look for activities that involve the type of person you seek.
Be aware that life and family pressures affect those between the ages of 20-40 so they may be less interested in what to you is a meaningful relationship.
A problem often encountered in my town of Darwin is that people often come here because 1 of the couple get a work transfer and all to often after a 2 year tour they then move to somewhere else... As a long term resident a form of fatigue can set in, whereby you stop putting effort into meeting people because all too often they move away.
Thai may well feel similarly, particularly with the language barrier as well.