Use these options to specify how the date range returns results. "Exact" means
that the start and end dates of descriptions returned must fall entirely within
the date range entered. "Overlapping" means that any description whose start or
end dates touch or overlap the target date range will be returned.
![[Study and exchange tour from Henan's higher education institutions]](/uploads/r/hksyu-university-archives/9/8/3/983ed34a62f26cc4bd34297cd96ece3a4532d03947af7a4c6955f7f91fb96978/17727_001_142.jpg)