Perhaps you should try some spelling variations:
dayuan li » yuan li
yang fan » zhang fan, yang dean, yang yang
chih eng » chih hang, chih yung, chan eng
eng hong » hong hong, kong hong, ong chong
cheng lu » cheng chu, cheng _
yan zhi » wang zhi
chen yu » chen y, chen yulu
yan zi » yuan zi, ban zi

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 fan ((dayuan li) OR (((yan zi) OR (yan zhi)))) chih eng hong ((cheng lu) OR (chen yu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang fan ((dayuan li) or (((yan zi) OR (yan zhi)))) chih eng hong ((cheng lu) or (chen yu)) ;~".
• Adding a wildcard symbol may retrieve word variants: yang fan ((dayuan li) or (((yan zi) OR (yan zhi)))) chih eng hong ((cheng lu) or (chen yu)) ;*.