I've noticed that there is some inconsistency between the format for the Find Command in NUSMates and in the User Guide
The readers may be confused between the two different formats, as the format in the User Guide may suggest that the find command requires multiple compulsory keywords, whereas in the GUI it suggests that find command requires one compulsory keyword and other optional keywords
Suggestion: Perhaps you could edit the user guide to reflect the same Find Command format as the one in NUSMates, so that the readers would have a clearer understanding of how to use the Find Command.
I've noticed that there is some inconsistency between the format for the Find Command in NUSMates and in the User Guide
In User Guide:
find KEYWORD...In NUSMates:

find KEYWORD [MORE_KEYWORDS]...The readers may be confused between the two different formats, as the format in the User Guide may suggest that the find command requires multiple compulsory keywords, whereas in the GUI it suggests that find command requires one compulsory keyword and other optional keywords
Suggestion: Perhaps you could edit the user guide to reflect the same Find Command format as the one in NUSMates, so that the readers would have a clearer understanding of how to use the Find Command.