Perhaps you should try some spelling variations:
coping usigng » coping during
risk coping » risk pooling
wang liang » wang yang
hoang cva » hoang vu
dong sign » dong sin, among sign, dong bin
cva risk » cvar risk, cvd risk, a risk
dong di » dong sin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang hyoung) or (wang liang)) hoang cva risk coping usigng ((dong di) or (dong sign)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang hyoung) OR (wang liang)) hoang cva risk coping usigng ((dong di) OR (dong sign)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang hyoung) or (wang liang)) hoang cva risk coping usigng ((dong di) or (dong sign)) ;*.