Perhaps you should try some spelling variations:
ii changes » iii changes, 2 changes, 4 changes
yi change » i change, yi chang, iii change
gain yang » dan yang, daun yang, tan yang
3 changes » 2 changes, 3 change, 4 changes
yan ying » fan ying, ran ying, tan ying
ying jin » yang jin, jing ji, yang jie
wan yan » wang yan, nan yan, wai yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ying jin ((gain yang) or (tan hong)) ((yi change) or (((ii changes) OR (3 changes)))) has ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ying jin ((gain yang) OR (tan hong)) ((yi change) OR (((ii changes) OR (3 changes)))) has ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan ying jin ((gain yang) or (tan hong)) ((yi change) or (((ii changes) OR (3 changes)))) has ;".
• Adding a wildcard symbol may retrieve word variants: wan yan ying jin ((gain yang) or (tan hong)) ((yi change) or (((ii changes) OR (3 changes)))) has ;*.