The floor tiles popping were likely an issue of too little space between. Thai tilers often only leave 1 mm.
Those cracks look like exterior render cracks, the wall likely isn't cracked, only the rendering. The interior crack would be the most concerning.
How is drainage? Full guttering into a soakaway 5 meters from the dwelling?
Thailand goes through big swings in temperature, which effects the rendering, and wet and dry seasons, which effects the ground and foundations.
Make sure your drainage system is well set up for the rainy season.
Measure the cracks with a pencil and ruler. Draw a straight 50mm line with the crack around the center point. Document the date and length, You can then go back to measure each line is still exactly 50mm.
Worst case scenario is needing to get the house underpinned. Around 150,000THB for 4 underpins.
Make sure the drainage cannot be an issue, fill in the cracks, and monitor and measure over the next few wet and dry seasons.