Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang wang » yan wang, yang liang, wang yang
yang yang » wang yang, wang yan
mine cong » minh cong
hua gene » human gene, a gene, hua ren
gene anh » gene bank, gene one
anh mine » anh minh, land mine, a mine

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((((yang wang) OR (yang guang))) or (yang yang)) hua gene anh mine cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((((yang wang) OR (yang guang))) OR (yang yang)) hua gene anh mine cong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yang wang) OR (yang guang))) or (yang yang)) hua gene anh mine cong shu ;*".