Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
human bone » human bones, human body
using dna » using dea, using data, using drag
dna human » data human, a human
yan guan » gan guan, yan yuan, yihan guan
hong shu » cong shu, tong shui, wong shiu
line » life

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: "line using dna human bone ((yan guan) OR (yang guang)) hong shu ;~".
• Adding a wildcard symbol may retrieve word variants: line using dna human bone ((yan guan) OR (yang guang)) hong shu ;*.