Perhaps you should try some spelling variations:
wang liang » wang yang
human gene » human genome, human gender, human bone
liang ya » liang dan, liang tan, jiang ye
hua gene » a gene, hua ren, hy5 gene
yang lin » yang jin, wang lin, yang li
lin tong » lin zong, xin tong, lee tong
tong hui » wang hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang ya ((hua gene) or (human gene)) yang lin tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang ya ((hua gene) OR (human gene)) yang lin tong hui ;.
• Adding a wildcard symbol may retrieve word variants: wang liang ya ((hua gene) or (human gene)) yang lin tong hui ;*.