Perhaps you should try some spelling variations:
change robert » change roberto, chase robert, chang roberto
zhang robert » chang roberto, hans robert, lang robert
time last » time list, time past, time lost
tan yang » dan yang, tan yong, tao yang
tan ying » fan ying, ran ying, tan yong
di time » ii time, i time, dido time

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: ((tan yang) OR (tan ying)) di time last thing ((zhang robert) OR (change robert)) b ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tan yang) or (tan ying)) di time last thing ((zhang robert) OR (change robert)) b ;~".
• Adding a wildcard symbol may retrieve word variants: ((tan yang) or (tan ying)) di time last thing ((zhang robert) OR (change robert)) b ;*.