When you search MLA International Bibliography, Academic Search Premier, or Humanities International Index, you are searching the citations to articles, as well as any index terms added to the citations. With these indexes, you are NOT searching the full text of the articles themselves.
MLA International Bibliography
For most students of literature written between 400 CE and the present, this is the index to start with. Indexes scholarly journal articles, chapters in books, books, and a portion of Dissertation Abstracts International. Coverage is worldwide for the period from 400 C.E. to the present. Includes literature, linguistics, folklore, and some film-related articles. You can link to many full-text articles via WebBridge.
The online MLA International Bibliography includes MLA indexing from 1926 to the present, although some older articles may also be indexed. The MLA also produced "American Bibliography for 1921" through "American Bibliography for 1925," which is not included in the online MLAIB, but can be searched via JSTOR in PMLA.
"American Bibliography for 1921" is in PMLA Vol. XXXVII, 1, March, 1922
"American Bibliography for 1922" is in PMLA Vol. XXXVIII, 1, March, 1923
"American Bibliography for 1923" is in PMLA Vol. XXXVIX, 1, March, 1924
"American Bibliography for 1924" is in PMLA Vol. XL, 1, March, 1925
"American Bibliography for 1925" is in PMLA Vol. XLI, 1, March, 1926