I just got BW 6 and the Qumran Sectarian Manuscripts. In trying to search the Qumran text i discovered that the Hebrew Keyboard Map allows for a Shin with the dot on the right hand side or a Sin with the dot on the left hand side but does not allow for an unpointed Shin. The Qumran text is unpointed as it should be because these texts came hundreds of years before there was any pointing. The first thing i tried to find in the Qumran text was MASE HaTORAH. "MASE" was entered with a Sin but showed up in red as not existing. When i entered only the word TORAH i was able to see that indeed there was an example of MASE TORAH.
This bug means that anything with a Sin or Shin will not be found in the Qumran text.