Perhaps you should try some spelling variations:
present challenges » current challenges, assessment challenges
min hyoung » mun young
3 present » _ present
min hong » amin hong, tin hong, min jeong
yang xi » yang di, yang yi, yang jui
ong e » ong ye, ong _
e 3 » es 3, eu 3
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yanling) or (yang xi))ong e 3 present challenges ((min hyoung) OR (min hong)) hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yanling) OR (yang xi))ong e 3 present challenges ((min hyoung) OR (min hong)) hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yanling) or (yang xi))ong e 3 present challenges ((min hyoung) OR (min hong)) hai ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yanling) or (yang xi))ong e 3 present challenges ((min hyoung) OR (min hong)) hai ;*.