I think that titling your lampshades as knit lampshades, with those being in the first three words might help with searches. Changing it up with some of the titles to spell lamp shade differently would also help you show up in more searches. Also, rework your tags. One word tags and tags that are just descriptive of the colors, patterns, or styles aren't really helpful. Use tags like knit lampshade, crochet lampshade, colorful lamp shade, boho lamp shade, teal lampshade, ombre lampshade, etc. Good luck!