Perhaps you should try some spelling variations:
hong than » hong tan, long thanh
yan wang » yuan wang, yang yang, qian wang
iii gene » iii rene, iii gender, iii genome
hong hai » shang hai, zhong tai, dang hai
li gene » i gene, l1 gene, lof gene
11 gene » 1 gene, a1 gene, l1 gene
done hu » done how, done why, dong hua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: yan wang yanling ((((li gene) OR (iii gene))) OR (11 gene)) ((hong than) OR (hong hai)) done hu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yan wang yanling ((((li gene) or (iii gene))) or (11 gene)) ((hong than) OR (hong hai)) done hu ;~".
• Adding a wildcard symbol may retrieve word variants: yan wang yanling ((((li gene) or (iii gene))) or (11 gene)) ((hong than) OR (hong hai)) done hu ;*.