[WaydayTew]

Be aware......Many cooked dishes are sweetened unlike western food.
Whether with raw sugar, corn syrup or another sweetener I can't say. I will guess it's with cane sugar though.
Some major food chain stores with English language web sites findable with google are:
Tesco Lotus
Foodland
Bic C
Carrefour
Villa Mart
Perhaps you can check their locations against you travel plans and/or get an email off to them for assistance.