Perhaps you should try some spelling variations:
how slower » has slower, low lower
rede jong » de jong, rede von, rhee jong
yan gang » yan wang, yang guang, yang yang
der rede » der redner, der re
jong min » gong min, song min, song ming
how slow » how low, grow slow, too slow
wang » wing, wan, lang

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 yan gang der rede jong min ((how slow) OR (how slower)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan gang der rede jong min ((how slow) or (how slower)) ;*.