Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yang wang » yang yang, yan wang, yang liang
tan chia » tuan china, than china, can china
chia wen » china won, ching wen, asia wen
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
yan jiu » pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang wang) OR (yang guang)) tan chia wen ((yan jiu) or (((yang jin) or (yang jie)))) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang wang) OR (yang guang)) tan chia wen ((yan jiu) OR (((yang jin) OR (yang jie)))) cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang wang) OR (yang guang)) tan chia wen ((yan jiu) or (((yang jin) or (yang jie)))) cong shu ;".
• Adding a wildcard symbol may retrieve word variants: ((yang wang) OR (yang guang)) tan chia wen ((yan jiu) or (((yang jin) or (yang jie)))) cong shu ;*.