如何在Marklogic中构建一个简单的搜索应用程序？

I want to build a simple search application in Marklogic but I don't want to use Application Builder. I want to write my own .xqy files. I want to take input from user say First Name, Last Name & Address. The user can search by First Name, or Last Name or Address. He can also search by entering all the three fields or can also leave three fields blank. In that case (blank) all the records should be returned. How can I build such application in Marklogic with search facility on specific nodes of xml like First Name, Last Name etc.I want to build a simple search application in