Perhaps you should try some spelling variations:
22microbial genetics » microbial genetics, 2_microbial genomics, microbial genomics
1microbial genetics » microbial genetics, microbial genomics, microbial kinetics
microbial genetic » microbial genetics, microbial genomics, microbial gene

Try widening your search to All Fields.

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: %((((22microbial genetics) OR (1microbial genetics))) OR (microbial genetic))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22microbial genetics) OR (1microbial genetics))) or (microbial genetic))%22".
• Adding a wildcard symbol may retrieve word variants: %((((22microbial genetics) OR (1microbial genetics))) or (microbial genetic))%22*.