Perhaps you should try some spelling variations:
phone adding » phone banking, thing adding, when adding
zhang ping » zhang ming, zhang ting, zhang ying
zhang jing » zhang ming, zhang jin, zhang ting
gang data » ring data
data base » data based
chang su » chang hsun, chang fwu, chang gui
i gang » ii gang, li gang, yi gang

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: (yang OR lang) i gang data base ((phone adding) OR (((zhang ping) OR (zhang jing)))) chang su ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(yang or lang) i gang data base ((phone adding) or (((zhang ping) OR (zhang jing)))) chang su ;~".
• Adding a wildcard symbol may retrieve word variants: (yang or lang) i gang data base ((phone adding) or (((zhang ping) OR (zhang jing)))) chang su ;*.