Perhaps you should try some spelling variations:
when adding » why adding, when handling, when adapting
yang davis » wang david, yang dali
davis best » davis test, david west, davis robert
zhang ying » zhang ming, zhang jing, zhang ping
chang hsun » chang ch'un, chung hsuan, chang su
ying yang » yang yang, yin yang, ying chang
fan ying » fan xing, ran ying, tan ying

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

• Performing a fuzzy search may retrieve terms with similar spellings: fan ying yang davis best ((when adding) or (zhang ying)) chang hsun ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: fan ying yang davis best ((when adding) OR (zhang ying)) chang hsun ;*.