Perhaps you should try some spelling variations:
chang soon » chang won, chin soon, chang gordon
soon jeong » seok jeong, soon beng, soon heng
jeong shu » jeong su, cong shu
yan yang » yang yang, dan yang, tan yang
yao yang » yang yang
yi chen » jui chen
yi shen » jia shen, pui shen, wei shen
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan yang) OR (yao yang)) ((yi chen) or (yi shen)) chang soon jeong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan yang) OR (yao yang)) ((yi chen) OR (yi shen)) chang soon jeong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) OR (yao yang)) ((yi chen) or (yi shen)) chang soon jeong shu ;*".