Perhaps you should try some spelling variations:
seed testing » field testing
liang liang » liang liying, wang liang, liang ying
testing can » testing chain, testing a, testing cpt
lian xiang » li xiang
can seed » can see, can seem, clean seed
can case » can cause, can cash, can care
case im » case i, case ii, case iv

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((liang liang) or (lian xiang)) can seed testing can case im ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang liang) OR (lian xiang)) can seed testing can case im ;*.