Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
longer do » longer _, longer a
tuan hua » tan hua, yuan hui
hui yang » hui ying, du yang, h yang
yang 3.2 » zwang 3.2, yang 4.3, yang y.c
tuan vu » thanh vu
long do » long d, long du, long ago

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang liang) or (yang guang)) ((tuan hua) or (tuan vu)) hui yang 3.2 ((long do) OR (longer do)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yang guang)) ((tuan hua) OR (tuan vu)) hui yang 3.2 ((long do) OR (longer do)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) ((tuan hua) or (tuan vu)) hui yang 3.2 ((long do) OR (longer do)) ;*".