Perhaps you should try some spelling variations:
hang zhang » zhang zhang, cheng zhang, huang chang
zhang ming » zhang xin
tang ming » tang min, sang minh, song ming
chih hang » chin chang, shih huang, chih yung
zhang ke » zhang wei, zhang joe, zhang lei
wang wei » zhang wei, wang zhi
leung » leong, lung, yeung

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

• Performing a fuzzy search may retrieve terms with similar spellings: leung ((tang ming) OR (zhang ming)) chih hang zhang ke ((cong shu) or (wang wei)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: leung ((tang ming) OR (zhang ming)) chih hang zhang ke ((cong shu) OR (wang wei)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "leung ((tang ming) OR (zhang ming)) chih hang zhang ke ((cong shu) or (wang wei)) ;*".