Perhaps you should try some spelling variations:
how slower » has slower, low lower
wing yan » wang yan, wing ian, wing tan
yan gang » yan wang, yang guang, yang yang
der rede » der redner, der re
jong min » song ming, cog min, jeong mi
gong min » gong meng, song ming, gong si
song min » song ming, song jin, song shin
how slow » how low, grow slow, too slow

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: wing yan gang der rede ((jong min) OR (((gong min) OR (song min)))) ((how slow) OR (how slower)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan gang der rede ((jong min) or (((gong min) OR (song min)))) ((how slow) or (how slower)) ;~".
• Adding a wildcard symbol may retrieve word variants: wing yan gang der rede ((jong min) or (((gong min) OR (song min)))) ((how slow) or (how slower)) ;*.