dont know much about flying clubs in Thailand and Malaysia. But have heard that the ones in Malaysia offer really good quality of flying.
Just a small piece of advice, try contacting the schools/flying clubs before hand and attain complete knowledge about the local regulations.
if you hold a license, you would need to convert it first, check if the schools can help you issue a temporary one. also, you will have to meet the club's minimum requirements in order to be able to hire their planes.
if you opt to fly with instructor, you might need to get a special study permit from the immigration to be allowed to fly as a student.
well, if you want to know any type of info about Philippines, lemme know. I am here in Manila. Have flown in many clubs here. and also with a school in Cebu city.
am sure you will have a great time flying in Asia.
all the best!