Perhaps you should try some spelling variations:
human bone » human bones, human body
yang yao » yang yang, wang yan, yang fan
hua gene » human gene, a gene, hua ren
yang yi » yang di, yang xi, yang jui
li rong » yi rong, li song, shi rong
li cong » li song, jiu cong
tang » tan, lang, wang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yao) or (yang yi))ng ya ((hua gene) or (human bone)) tang ((li rong) or (li cong)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yao) OR (yang yi))ng ya ((hua gene) OR (human bone)) tang ((li rong) OR (li cong)) ghi ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yao) or (yang yi))ng ya ((hua gene) or (human bone)) tang ((li rong) or (li cong)) ghi ;*.