Perhaps you should try some spelling variations:
using areas » using arenas, using area, using arrays
done using » line using, move using
areas 4.3 » areas 14.3, areas 3.3, areas 2.3
4.3 when » 4.1 when, 9.3 when, 2.4.3 when
yang jui » yang judy, yang xi
when so » when do, when co, when soft
so ging » so fing
yang yi » yang xi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: done using areas 4.3 when so ging ((((wang yan) OR (yang yi))) OR (((yang jui) OR (yang di)))) ;~.
• Adding a wildcard symbol may retrieve word variants: done using areas 4.3 when so ging ((((wang yan) or (yang yi))) or (((yang jui) or (yang di)))) ;*.