Perhaps you should try some spelling variations:
yang using » yang jing, making using, change using
yang ping » yang jing, yang liang, zhang ping
dong cao » dong xiao, dan cao, dong nan
pong yue » hong yu, wang yue, ong ye
wong yue » wang yue, hong yu
yaa how » data how
sin » sign, sind, skin
using » usigng, usindg, usking
best » west

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong cao) or (dong sin)) yaa how best ((yang ping) or (yang using)) ((pong yue) OR (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong cao) OR (dong sin)) yaa how best ((yang ping) OR (yang using)) ((pong yue) OR (wong yue)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong cao) or (dong sin)) yaa how best ((yang ping) or (yang using)) ((pong yue) OR (wong yue)) ;".
• Adding a wildcard symbol may retrieve word variants: ((dong cao) or (dong sin)) yaa how best ((yang ping) or (yang using)) ((pong yue) OR (wong yue)) ;*.