Title fragment: a phrase from the title of an article, i.e. words appear together in the given order. Truncation is automatic both in the front and at the end, thus it need not be indicated.
Examples for title fragments: brief introduction, European Union, witness protection
Query term: adenine
Result: benzyladenine, adenine nucleotides, benzyladenine-induced

Masking is also possible.
Query term: Hungarian%law
Result: Hungarian tendencies in law enforcement, Notes on Hungarian Anti-Discrimination Law, moral of the Hungarian Status Law saga

Truncation and masking
Various forms of a word or term with different endings may be suitable for us (e.g. communicable, communication, etc.). In this case the ending may be substitued by the symbols % or * after the first characters (e.g. communi% or communi*).

Masking is used if we wanted to substitue a character in the middle of a word, e.g. because it may occur with different spelling (e.g. in the case of foreign terms), or we would like to search for two different words (e.g. makro, mikro). In the MATARKA database you may substitue one or more characters (e.g. if you search for deve*pment you will retrieve hits with: development, developmental, etc.).