Perhaps you should try some spelling variations:
yang chung » dang hung, fung chung, kung chung
low intake » low take
new intake » new intakes, net intake
wang yang » wang yan, wang liang, wang yanling
rate saul » rate sar
h gender » 2 gender, 3 gender, 4 gender
1 gender » 2 gender, 3 gender, 4 gender

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: wang yang chung ((h gender) OR (1 gender)) ((low intake) OR (new intake)) rate saul ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang chung ((h gender) or (1 gender)) ((low intake) OR (new intake)) rate saul ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang chung ((h gender) or (1 gender)) ((low intake) OR (new intake)) rate saul ;*.