Perhaps you should try some spelling variations:
yan yanling » wang yanling, yan jianping
human gene » human genome, human gender, human bone
hua gene » a gene, hua ren, hy5 gene
sang min » sang minh, song min, tang min
min dang » yimin dang, mein dank, bin dann
wang » wing, wan, lang
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yanling ((hua gene) or (human gene)) sang min dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yanling ((hua gene) OR (human gene)) sang min dang hai ;*.