'various trials' is a correct and usable phrase in written English.
You can use it to refer to multiple tests, experiments, or challenges that someone has undergone or attempted, or may need to undergo or attempt. For example, "After various trials, the scientists found a cure for the virus."
He went on to testify in various trials.
A similar level of determination undoubtedly sustained Hughes through the various trials that a life in racing brings.
By contrast, the drug Contrave from Orexigen Therapeutics caused a placebo-adjusted weight loss in various trials of only 3.2percentto5.2percentcent.
Like the hero of "Siddartha," the novel by Herman Hesse that Mr. Lin used as a springboard, the performers referred to various trials in search of enlightenment.
Results of various trials were announced over the last few days at the American College of Rheumatology meeting in New Orleans.
He was comforted by his favorite Bible passage, which says in part, "when you encounter various trials, for you know that the testing of your faith produces perseverance".
Its players began on a checkerboard square called Infancy and tried to make their way through various trials to the destination of Happy Old Age.
He has no immunity from prosecution; it is not the case that he has immunity in various trials.
Those who believe in God are beamed up to heaven while sinners are left behind to survive various trials.
I thought that they were not only incapable, owing to their unsavory physical decline, but too worn down — or depressed — by their various trials and experiences to have any interest left.
Not for a second is he slapdash, but somehow he seems, like Stendhal, to happen upon people and their various trials, and they in turn just happen to appear.
