Perhaps you should try some spelling variations:
7.2.1 david » 1.2.7 david, 3.2.1.3 david
liang zili » liang lilin, liang zhi, yang zili
form 7.2.1 » form 2.1, form 2.2.2
david mant » david ian, david ma, david malone
liang li » ling li, liang wei, liang zhi
qiang li » qiang niu, ling li, qian yi
mant hai » dang hai
wang » wing, wan, lang

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: wang yan ((liang zili) OR (((liang li) OR (qiang li)))) form 7.2.1 david mant hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan ((liang zili) or (((liang li) OR (qiang li)))) form 7.2.1 david mant hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan ((liang zili) or (((liang li) OR (qiang li)))) form 7.2.1 david mant hai ;*.