Full list of E-books in Science and Engineering.
Google Book Search does not post the entire text of a book online unless the book is in the public domain. Try searching with terms more appropriate to your topics. If you find a book that sounds interesting, check to see if it is in the UCLA Library Catalog.
Library catalogs use the Library of Congress Subject Headings (http://authorities.loc.gov) of describe their books and journals. You may want to look at the Library of Congress Subject Heading List before you begin searching in a catalog. You'll be able to see subject terms that are broader, more specific or related and use those in your search as well.