Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
mine cong » minh cong
lang yan » wang yan, wang yang, yang yang
yang hua » wang hua, yang hui, ying hua
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) OR (zhang yan)) yang hua gene anh mine cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang yan) OR (zhang yan)) yang hua gene anh mine cong shu ;*.