If you have a case citation, which is a number followed by an abbreviation and another number, that is the easiest way to find a court case. Otherwise, you will have to locate by party name.
If affiliated with Virginia Tech, you can search Fastcase to find cases.
If unaffiliated, try the Cases & Codes section of FindLaw. There you will find links to federal and state cases. You can also search for federal appellate, district, and bankruptcy courts using PACER.