Perhaps you should try some spelling variations:
chen shuang » chen huigang, chen chuanfu, chen chuling
done using » line using, move using
using yang » using ann, using bank, ying yang
chen chung » chen chuling, chen dung, chen zheng
slip zone » saif zone, slip mode, slow zone
chuan » chan
sez » saez, sezs

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

• Performing a fuzzy search may retrieve terms with similar spellings: done using yang judy ((((chen shuang) OR (chen chung))) or (chen chuan)) slip zone sez ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: done using yang judy ((((chen shuang) OR (chen chung))) OR (chen chuan)) slip zone sez ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done using yang judy ((((chen shuang) OR (chen chung))) or (chen chuan)) slip zone sez ;*".