How to Create search function in Flask using Sqlite3 - html

Question

This is my form for search function
<form class="form-inline ml-auto" action="{{ url_for('search') }}" method="POST">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search" name="search" id="search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
Now I wan to display it if its match so this is my html
{% for articles in data %}
<div class="card m-3">
<input type="hidden" value="{{ data[0] }}" id="id" name="id">
<h5 class="card-header">{{ data[0] }}</h5>
<div class="card-body">
<h5 class="card-title">{{ data[2] }} - {{ data[3] }}</h5>
<p class="card-text">{{ data[4] }}</p>
</div>
<div class="row m-3 ml-auto">
<div class="btn-group mr-2">
Update Article
</div>
<div class="btn-group">
Delete Article
</div>
</div>
</div>
{% endfor %}
And also this is my query filter
#app.route('/search',methods = ['POST', 'GET'])
def search_route():
if request.method == 'POST':
q= request.args.get('search')
with sqlite3.connect("blogdb.db") as con:
cur = con.cursor()
cur.execute('SELECT * FROM articles WHERE title = ?', (q))
art = cur.fetchall()
cur.close()
print(art[0])
con.commit()
return render_template('search.html', data = art[0])
So far what I got is that it doesnt return anything I also tried to print(art[0]) so that I can see what did i get but i aint getting anything.