Microsoft Corp. is abandoning its effort to scan whole libraries and make their contents searchable, a sign it may be getting choosier about the fights it will pick with Google Inc.

The world’s largest software maker is under pressure to show it has a coherent strategy for turning around its unprofitable online business after its bid for Yahoo Inc., last valued at $47.5 billion, collapsed this month.

Digitizing books and archiving academic journals no longer fits with the company’s plan for its search operation, wrote Satya Nadella, senior vice president of Microsoft’s search and advertising group, in a blog post Friday.

Microsoft will take down two separate sites for searching the contents of books and academic journals next week, and Live Search will direct Web surfers looking for books to non-Microsoft sites, the company said.

Nadella said Microsoft will focus on “verticals with high commercial intent.”