@Wilson_Impson - Asana recently (past few months) launched enhancements to search syntax, which are documented here:
There are still some limitations (e.g., it would return results buried in the middle of a word, so if you search carrots, it won’t find that in peascarrotspotatoes), but it does work if your term is the start of a word (i.e., in that previous example, peas* would have returned the result.