Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
3.2 longer » 3.2 langere, 3.2 long, 3 longer
longer do » longer _, longer a, long do
tuan hua » tuan vu
yuan hui » yuan fei, jaan hui, yang hui
yang 3.2 » zwang 3.2, yang 4.3, yang y.c
tan hua » wang hua, tan chia, tan puay

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: ((yang liang) OR (yang guang)) ((((tuan hua) OR (tan hua))) OR (yuan hui)) du yang 3.2 longer do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) ((((tuan hua) OR (tan hua))) or (yuan hui)) du yang 3.2 longer do ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) ((((tuan hua) OR (tan hua))) or (yuan hui)) du yang 3.2 longer do ;*.