The phrase "went through with fine tooth comb" typically refers to a thorough search or investigation. There are several synonyms for this phrase, including "scrutinized," "inspected," "examined," "analyzed," and "reviewed." These words all convey the idea of carefully examining something in order to learn more about it. Other synonyms might include "vetted," "delved into," "explored," or "probed." Depending on the context in which the phrase is used, different synonyms may convey slightly different shades of meaning, but all of them suggest a close and critical examination. Whether conducting an audit, investigating a problem, or simply poring over a text, going through something with a fine-tooth comb is an important step towards thorough understanding.