Perhaps you should try some spelling variations:
contains blood » contains book, contains also, chains blood
contact blood » intact blood, content blood, contact beyond
conduct book » conduct both, conduct good, conduct about
contact book » content book, contact bio, contact bulk

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((conduct book) OR (((contact book) OR (((contact blood) OR (contains blood)))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((conduct book) or (((contact book) or (((contact blood) OR (contains blood))))))".
• Adding a wildcard symbol may retrieve word variants: ((conduct book) or (((contact book) or (((contact blood) OR (contains blood))))))*.