The search should be:
not the hphen but 3 dots
I don't put the hphen, I have two different fields, one for arrival date and one for finishing date.
I press the find mode button and then check the dates 1/1/2013 on the arrival date field and 1/31/2013 on the finishing date and then I press the Perform Find button.
doung this you search for records that have arrival date = 1/1/2013 and finishing date = 1/31/2013
if you want to search in between just enter:
arrival date: ≥1/1/2013
finishing date: ≤ 1/31/2013
It appears that you have a date interval and want to know if that date interval "overlaps" the date interval specified by the first and last days of a given month.
Note that the following three date intervals overlap the 1/1/2013...1/31/2013 date interval:
12/31/2012 ; 1/15/2013 | 2nd date falls between start and end dates
1/5/2013 ; 2/20/2013 | 1st date falls between start and end dates
12/5/2012 ; 2/5/2013 | 1st date is before start date and 2nd date comes after start date
If I have stated the problem accurately, then you need three find requests testing for each of the three different cases. You can enter find mode and generate three find requests--each with different find criteria or you can perform a find for the first case and then return to find mode, specifying different criteria and use extend found set to combine results for each of the remaining two cases.
There are also ways to use either a return separated list of dates or a related table of dates to specify a date range that can be used with a relationship to show which records have a date interval that overlaps a specified date range.