There are many synonyms for the phrase "bloody hell," which is typically used to express shock or frustration. Some alternatives include "good grief," "oh my God," "for heaven's sake," and "what in the world." Other options might include more colorful phrases like "holy cow," "son of a gun," or "damn it all." Depending on the situation, you might choose a more mild or a more intense phrase to convey your emotions. Ultimately, the key is to use words and phrases that feel natural to you and that accurately capture the sentiment you are trying to express.