Can I travel in Europe with my VLS-TS student visa?

Yes. Once your VLS-TS is validated, you can travel freely to the other countries of the Schengen area, for up to 90 days in any 180-day period, as long as your visa is valid.

If you have not validated your VLS-TS yet, do it before you travel: validation is what lets you leave and re-enter the Schengen area. See How to validate my student visa VLS-TS.

The Schengen area has 29 countries:

Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland.

Cyprus and Ireland are in the EU but not in the Schengen area, and neither is the United Kingdom. Check their entry rules before you travel.