From the ABC of Scaling:

Restrictions

There are some restrictions on how certain combinations of studies may be counted for your ENTER.

In each of the study areas of English, mathematics, history, information technology, LOTE (Languages other than English) music:

• at most two results can contribute to the Primary Four
• at most three results can contribute to the ENTER, the third being counted as a 10% increment for a fifth or sixth study

If your ENTER incorporates an Extension increment from any of the study areas of mathematics, English, LOTEs, music, history or computer science/information technology then no more than two VCE results from the same study area can be used in the calculation of the ENTER"

So the answer is two LOTE can contribute to the Primary Four