Perhaps you should try some spelling variations:
chuan data » chuan dato, human data, can data
congo can » congo call, cong van, congo a
zhong zhi » zhang zhi, zhong tai
data wan » dato wan, data what, data when
hong ghi » hong g, hong hai
can say » can save
wan min » wan ming, han min, kan min

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

• Performing a fuzzy search may retrieve terms with similar spellings: congo can say chuan data wan min ((hong ghi) or (zhong zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: congo can say chuan data wan min ((hong ghi) OR (zhong zhi)) ;*.