On Trulia our search for 'Recently Sold Homes' only goes back 9 months. Thus if you access the link below to see recently sold homes in Hayward, you will find information for sales that occurred from January through September of this year.
I'll let our team know of your wish to be able to search for a wider range of recent sales. However I would also suggest that you perform a search for your own address on Trulia. If we have data available for your home we will likely show comparable properties for your home as well which may assist you with this project.
I hope this helps you. Please be sure to let us know if you have any additional questions or feedback for us.