On Twitter, you can search for a user's tweets, or you can find a specific term within an account.
Steps
Method 1 of 2: Using Twitter's Advanced Search
Step 1. Go to Twitter
Log in with username (or email) and password.
Step 2. Go to Twitter Advanced Search
Step 3. Enter a username
Write the name of the profile you are interested in (for example wikihow) in the field From these users.
Step 4. Scroll down and click on the Search button
Step 5. Done
You can now see the tweets of your favorite user.
Method 2 of 2: Using a Search Command
Step 1. Go to Twitter
Log in to your account.
Step 2. Write From: username (for example From: wikiHow) in the Twitter search bar, then press Enter.
Step 3. Done
To search for a specific term in a user's profile just add it after the From command: username (for example From: wikiHow Vita).