I'm sorry that Stock for individuals is not available in Singapore.
From the FAQ: https://helpx.adobe.com/stock/help/plans.html
In what countries can I buy Adobe Stock?
Adobe Stock subscriptions for Creative Cloud teams may be purchased at any Adobe reseller. Adobe Stock subscriptions and licenses for individuals may be purchased online in the US, Canada, Mexico, the UK, Ireland, South Africa, New Zealand, Australia, Japan, Netherlands, Norway, Sweden, Denmark, Belgium, Switzerland, Finland, Luxembourg, Germany, France, Italy, Austria, Spain, Portugal, Greece, Poland, Czech Republic, Bulgaria, Estonia, Latvia, Lithuania, Hungary, Malta, Romania, Slovenia, Slovakia, and Cyprus.
In this case if I would like to have access to Adobe Stock which creative cloud membership would i need to subscribe to?
May i seek your help to advise on how then may myself as a users purchase the stock images in Adobe stock?