Wildcards e.g. test*
Matches any set of one or more characters. For example test* would result in test, tester, testers, etc.
Fuzzy Search e.g. swore~
Finds terms that are similar in spelling. For example swore~ would result in swore, snore, score, etc.
Term Boosting e.g. pledge^4 hijrah
Boosts words with higher relevance. Here, the word pledge will have higher weight than hijrah
Boolean Operators e.g. ("pledge allegiance" OR "shelter") AND prayer
Create complex phrase and word queries by using Boolean logic.
(Hayyan ibn Bistam al-Basri)
(حيان بن بسطام البصري)