The Academic Senate at the University of California, Los Angeles, voted against two resolutions seeking to rebuke the school’s chancellor, Gene Block, largely over his handling of an attack on a pro-Palestinian encampment two weeks ago.

The results of the votes, conducted after a three-hour meeting on Thursday, were released on Friday and showed that only 43 percent of voting members had backed a no-confidence motion. A motion to censure Dr. Block was evenly split, 88 for and 88 against,…