Currently you can only search by one or more separate words. If you input "sequence of words" it will search for mods that have "sequence", "of", and "words" in description, not "sequence of words". It would be nice to be able to search for full text if you put these words between quotation marks.
Example use case - I want to search for NPC overhaul that utilizes "Vanilla Hair Remake" mod (it would be listed in credits), but since I can't search for specific word sequence, I have to analyze every mod personally one by one.