Perhaps you should try some spelling variations:
zili reform » ii reform, nabli reform
viii reform » ii reform, vi reform, iii reformen
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
3.1 david » 2.1 david, 61 david, 81 david
317 david » 2017 david, 210 david
hai » hadi, haji, hari

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: wang yang yang ((zili reform) OR (viii reform)) ((3.1 david) OR (317 david)) dang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yang ((zili reform) OR (viii reform)) ((3.1 david) or (317 david)) dang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang yang ((zili reform) OR (viii reform)) ((3.1 david) or (317 david)) dang hai ;*.