When words were linked with '_' or '.' Lucene would treat it as one word. Change it so that Lucene treats them as separate words. The new analyzer wraps StandardAnalyzer and changes the behavior such that '_' and '.' are treated as whitespace. A reindex is necessary. Bug: issue 2822 Change-Id: Ibed25695bf8e60335a2486e5e988a7c67b3da37d