Hi,
I used a plug-in called “Blogger to WordPress”. I followed the how-to guide . Thought everything was okay after until I do some test searches (i.e. typing the old URL, searching my SEOed articles on Google search) and noticed the URL is displayed incorrectly.
I asked my hosting provider for help. They refer me to a Yoast article. They ask me to change the permalinks. I followed the instruction there as well and then they pasted the code provided by Yoast on my site’s .htaccess. Still, did not work.