I would like to suggest an improvement to search functionality as it currently lacks(or so it may look) pretty much expected ability to expand results of a search by title with including category/tag criteria as well. I was suggested to try an 'Advanced Search' but if you can't use a name in a search it makes it's use very limited (at first I was under impression that 'Advanced Search' is a sub-dialogue to clarify standard search' options but it didn't seem to be the case).
For me, when searching by a title or fragment of a title I would like to have filtered-out/included some genres(ideally, categories and tags as well). Lets say we are searching for a word 'sex' - we are pretty much are in for a barrage of 'Adult, Hentai' titles. If something doesn't have this genres set you will have trouble locating it amongst all the noise. Hope you get the idea.
3 ways of going about it is: 1. Improve further the 'Advanced Search' - to include 'Title' field as well(that would probably easiest to do) 2. Add filter options on the 'manga search' results page - to have an ability to change what genres/categories/(tags) will be shown and/or... 3. Add semi-permanent search options for each user's search request(similar to 'release filtering' in User CP)