Perhaps you should try some spelling variations:
a assessment » 3 assessment, 4 assessment, 1 assessment
challenges 3 » challenges 1
hyoung hai » hong hai
wang yang » wang yan, wang liang, wang yanling
3 hyoung » 3 young, _ young, a young
yang xi » yang yi, yang jui
ng ye » ng yew, ong ye
ye a » yet a, e a, me a

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) OR (((yang di) OR (yang xi))))ng ye a assessment challenges 3 hyoung hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) OR (((yang di) OR (yang xi))))ng ye a assessment challenges 3 hyoung hai ;*.