He directed the work for establishing the cartotheque of grammar and the important work Gramatika e gjuhës shqipe (The grammar of the Albanian language), in two volumes; he was its chief editor, and co-author and editor of its second volume (Syntax).

He also contributed with a series of scientific articles and researches over general topics of the Albanian syntax and its structural development.

In the field of the history of literature, Domi wrote articles and researches over the origins of the Albanian language, its connection to other Balkan languages, especially with Romanian, i.e. Prapashtesa ilire dhe shqipe, përkime dhe paralelizma (Illyrian and Albanian prefixes, correspondences, and parallelisms) of 1974, Konsiderata mbi tiparet e përbashkëta të shqipes me gjuhët ballkanike dhe mbi studimin e tyre (Considerations over the shared features of the Albanian language with other Balkan languages and their study) of 1975, Mbi disa përkime dhe paralelizma sintaksore shqipe-rumune (Over some Albanian-Romanian correspondences and parallelisms) of 1977, Probleme të historisë së formimit të gjuhës shqipe, arritje dhe detyra (Problems of the history of the Albanian language formation, achievements and tasks) of 1982.

[4] As one of the main personalities in linguistics, Domi was member of the commissions who carries the task of standardizing the Albanian orthography, in 1956 and 1967, co-organizer and participant of the Orthography Congress of November 1972, member of the follow-up commission for deploying the new orthographic rules and co-author of the Drejtshkrimi i gjuhës shqipe (Orthography of the Albanian language) of 1973, Fjalori drejtshkrimor (Orthographic dictionary) of 1976, Rregullat e pikësimit në gjuhën shqipe (Punctuation rules in the Albanian language) of 1981 (another edition in 2002).

He was the organizer and main co-contributor to the work that resulted in the publishing of the Atlasi dialektologjik i gjuhës shqipe (Dialectical atlas of the Albanian language), Dialektologjia shqiptare (Albanian dialectics), both works of major importance.