It would be helpful if confusable characters, lookalikes, homoglyphs, and diacritics were treated as interchangeable when conducting searches. Currently, it seems that searches require the exact Unicode characters used in the item being searched for. This can be problematic because text copied from an original source may include a variant of a character that users might not recognize or know how to input when later searching for the same item. As a result, they may not be able to find the item they are looking for. For example, a user searching for "Cost-Effectiveness Thresholds" with a keyboard hyphen will not find an item using an en-dash, "Cost–Effectiveness Thresholds".

Some examples I have come across: curly vs straight quotation marks (“/" or ‘/'), hyphens vs en-dashes vs em-dashes (- / – / —), accented characters (é / e), ellipsis character vs three periods (… / ...).