Perhaps you should try some spelling variations:
hard things » hard thing, bad things, smart things
things were » things here, things we, things work
zwang 6.2 » zwang 2.2, zwang 3.2
6.2 hard » 2.2 hard, 5.2 hard, 6.2 hand
tan yong » tan hong, tan kong, tan yang
wang » wan
zwang » zwan
sin » sign, sind, skin

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: ((wang OR wing) OR lang) yanling zwang 6.2 hard things were ((tan yong) OR (dong sin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang OR wing) or lang) yanling zwang 6.2 hard things were ((tan yong) or (dong sin)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang OR wing) or lang) yanling zwang 6.2 hard things were ((tan yong) or (dong sin)) ;*.