This is an older post, but I'll respond for future users...

The most likely answer is that you need to "upgrade" your app/module from the Menu > Apps dropdown.  Locate the app in the list (you may need to remove "Apps" from search).  Finally click "upgrade" on your app.

If you're making a lot of changes you can try binding a keystroke in your IDE (VS Code, Pycharm, etc.) to something like:

sudo /opt/bitnami/odoo/venv/bin/python /opt/bitnami/odoo/bin/odoo -c /opt/bitnami/odoo/conf/odoo.conf -d bitnami_odoo -u name_of_your_module

Be sure to point to your correct python, odoo binary, config file (-c), and database (-d).  In certain cases, you'll want to restart the entire application.  If you're using bitnami, it's probably:

sudo /opt/bitnami/ctlscript.sh restart odoo

Hope this helps!