You can take a bus part of the way and a train part of the way.

The bus that you mention stops in Sacramento.

You can book any of these options:
A. Bus from Stockton to Sacramento, Capitol Corridor train from Sacramento to Davis, bus from Davis to Stockton.
B. Bus from Stockton to Davis, bus from Davis to Sacramento, San Joaquin train from Sacramento to Stockton
C. San Joaquin train from Stockton to Sacramento, bus from Sacramento to Davis, bus from Davis back to Stockton
D. Bus from Stockton to Davis, Capitol Corridor train from Davis to Sacramento, bus from Sacramento to Davis

Not understanding the language and signs, and having to interact with people from different countries and cultures to find your way about is surely part and parcel of the excitement of travelling abroad? I would suggest that you buy a basic guide/phrase-book before travelling and learn a few useful phrases that will come in handy.

see http://web.mta.info/lirr/about/TicketInf...
MULTIPLE-RIDE TICKET TYPES

If you are going to travel for more than one day, you may save money purchasing one of our multiple-ride tickets. Monthly and weekly tickets are non-transferable. They are for the exclusive use of the person who first presents them, must be signed by the owner, and are subject to confiscation if used by anyone other than the owner.

Monthly
Good for unlimited rides during the calendar month indicated on the ticket. On sale starting the 20th of the month prior to the valid month of travel (for example: on May 20th you can buy June's ticket) at Ticket Offices and Ticket Machines. Sold in advance from WebTicket. Non-transferable.

Weekly
Good for unlimited rides Saturday through Friday; expiration date indicated on the face of the ticket. On sale starting the Wednesday before the Saturday that the ticket becomes valid. Sold in advance from WebTicket. Non-transferable.

Ten-Trip
Good for ten one-way rides from/to City Zone 1 only. Valid for 6 months (including date of sale). Available from WebTicket. Transferable - can be used by more than one person even when they are traveling together.
The following ten-trip ticket types are available:

Ten-Trip Peak: Convenience ticket sol

Poughkeepsie train station?

How much would a taxi cost to get from the train station to Dutchess Community College and do I have to call them in advance because I notice they just sit outside the station.