Hyperlinkg not working in InDesign

Dear users,

I am a first time user of Indesign. Please pardon my stupid questions.

I have tried to set up a hyperlink to this address "oe.cd/publications", using the function "New Hyperlink from URL" .  When I exported it to PDF, Acrobat Reader could not recognise that it was a URL. 

I also tried to hyperlink to "https://www.oecd.org/publication" (its original address) while maintaining "oe.cd/publications" in the text. It did not work.

Then I tried "https://www.oe.cd/publicationss". Acrobat Reader could not detect it at first, but when I had already clicked on other hyperlinks in the document, it started to recognise it.

May I know how to solve this problem, please?

Thank you

{Renamed by MOD}