Perhaps you should try some spelling variations:
chain data » chained data, main data, again data
congo can » congo call, cong van, congo a
chan dato » chuan dato, hai dato, hon dato
zhong zhi » zhang zhi, zhong tai
can save » can have
hong ghi » hong g, hong hai
wan min » wan ming, han min, kan min

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: congo can save ((chan dato) OR (chain data)) wan min ((hong ghi) OR (zhong zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "congo can save ((chan dato) OR (chain data)) wan min ((hong ghi) or (zhong zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: congo can save ((chan dato) OR (chain data)) wan min ((hong ghi) or (zhong zhi)) ;*.