Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
gene clone » gene one
yang yang » wang yang, wang yan
gene long » gene one
long tail » long haul
long lai » wong lai, long lags, long last
liang i » liang li, liang _, liang wei

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang liang i ((gene long) or (gene clone)) thang ((long lai) OR (long tail)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang liang i ((gene long) OR (gene clone)) thang ((long lai) OR (long tail)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang liang i ((gene long) or (gene clone)) thang ((long lai) OR (long tail)) ;*".