Hello Ramil,
The Varanoid Lizards of the World book you seek, is available for viewing online at the link below. There may be some sections and chapters which you may not be able to access, as it is only a limited preview of the book, but you should be able to access at least a few of the chapters you seek. You can search the text of the book using the search field in the upper left hand corner of the page.
http://books.google.com/books?id=0e3OuHRRoIQC&pg=PP1&dq=varanoid+lizards+of+the+world#v=onepage&q=&f=falseAs Harold mentioned, it is unlikely that anybody will have individual chapters of the book, and your best bet is to pick up a copy for yourself. Although it is a bit expensive, it is a valuable resource to have, especially if you are interested in studying varanids. Perhaps you can request for your university/organization's library to purchase a copy for its collection?
Cheers and good luck!
Robert