Perhaps you should try some spelling variations:
liang liying » jiang liping, liang lilin, liang ying
test raising » test training, test taking, leg raising
lian xiang » li xiang
test using » tests using, tested using, testing using
cain case » chain case, chin case, jain case
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 liying) or (lian xiang)) cio ((test raising) OR (test using)) cain case im ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang liying) OR (lian xiang)) cio ((test raising) OR (test using)) cain case im ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((liang liying) or (lian xiang)) cio ((test raising) OR (test using)) cain case im ;*".