Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
using dna » using data, using drag, using dual
using dea » using dem, using delta, using ideal
wan yang » wang yang, dan yang, tan yang
eat last » vat lat
a last » _ last, a las
using » usigng, usindg, usking
sin » sign, sind, skin

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: wan yang yang ((((xa last) OR (eat last))) OR (a last)) things ((using dna) OR (using dea)) sin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yang yang ((((xa last) or (eat last))) or (a last)) things ((using dna) OR (using dea)) sin ;~".
• Adding a wildcard symbol may retrieve word variants: wan yang yang ((((xa last) or (eat last))) or (a last)) things ((using dna) OR (using dea)) sin ;*.