Perhaps you should try some spelling variations:
cancer patents » cancer patients, cancer patient, cancer rates
patents ca » patents a, patients can, patents act
wing yan » wang yan, wing ian, wing tan
tying up » taking up, tying _
yang jun » yang jui, pang jun, yang jin
ca along » fan along, gap along, pca among
nhue » neue

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: wing yan ((((tying up) OR (yang di))) OR (yang jun)) cancer patents ca along nhue ;~.
• Adding a wildcard symbol may retrieve word variants: wing yan ((((tying up) or (yang di))) or (yang jun)) cancer patents ca along nhue ;*.