When using a computer or mobile phone to perform a search, users tend to use short phrases to save physical effort, but with voice searches, this changes a bit, and searches become more conversational.
Artificial Intelligence has enabled Google to learn fax lists more and more about searches with every conversation it has with users.
The way you type in search engines is very different from how you speak. You can type "restaurants in Buenos Aires," but you'll probably perform a voice search by saying, "What are the most luxurious restaurants in Buenos Aires?"
That's why it's recommended that you use natural language on your website and long-tail keywords so search engines can match your content with what your target customers are searching for.
It's also advisable to use tools like Answer the Public to find out what questions your target customer might ask.
Before writing your content, think about your buyer personas and how they might ask questions about your business, services, and products.