Perhaps you should try some spelling variations:
taizong tang » tang tang
tang meng » tang zheng, gong meng, tang min
yuan linn » duan lian, yuan li, yuan ming
yuan lin » yuan li, duan lian, huang lin
yang xia » fang xia, yang di, yang yi
yang xi » yang di, yang yi, yang jui
sheng » cheng, zheng

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: taizong tang meng ((yuan lin) OR (yuan linn)) ((yang xia) OR (yang xi)) fang sheng ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "taizong tang meng ((yuan lin) or (yuan linn)) ((yang xia) OR (yang xi)) fang sheng ;~".
• Adding a wildcard symbol may retrieve word variants: taizong tang meng ((yuan lin) or (yuan linn)) ((yang xia) OR (yang xi)) fang sheng ;*.