Perhaps you should try some spelling variations:
using dna » using dea, using data, using drag
yang slip » yang lin
model sez » model set, model self, model step
model sem » model set, model sbm, model sm
jui chen » yi chen
using a » using _
yang li » yang lin, yang di, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doom ((using dna) or (using a)) jui chen ((yang slip) or (yang li)) ((model sez) OR (model sem)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doom ((using dna) OR (using a)) jui chen ((yang slip) OR (yang li)) ((model sez) OR (model sem)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doom ((using dna) or (using a)) jui chen ((yang slip) or (yang li)) ((model sez) OR (model sem)) ;".
• Adding a wildcard symbol may retrieve word variants: doom ((using dna) or (using a)) jui chen ((yang slip) or (yang li)) ((model sez) OR (model sem)) ;*.