Perhaps you should try some spelling variations:
human gender » bhutan gender, human gene, german gender
gender bank » under bank, gender barung, gender based
wang yang » wang yan, wang liang, wang yanling
duong van » cong van
duong anh » dang anh, trong anh
47 human » 4 human, 7 human, 17 human
yang 47 » yang 4, yang 4.3

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 47 human gender bank money ((cong shu) OR (((duong van) OR (duong anh)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang 47 human gender bank money ((cong shu) or (((duong van) OR (duong anh)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang 47 human gender bank money ((cong shu) or (((duong van) OR (duong anh)))) ;*.