Perhaps you should try some spelling variations:
wang liang » wang yang
yang guang » yang yang, yan guan, yang liang
3.2 longer » 3.2 langere, 3.2 long, 3 longer
tuan hua » tuan vu, yuan hui
wei yang » pei yang, wei yang's, wei shang
wei wang » wen wang, wei shang, wei qiang
longer a » longer _
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: ((wang liang) OR (yang guang)) ((tuan hua) OR (tan hua)) ((wei yang) OR (wei wang)) 3.2 longer a ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang liang) or (yang guang)) ((tuan hua) or (tan hua)) ((wei yang) OR (wei wang)) 3.2 longer a ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang liang) or (yang guang)) ((tuan hua) or (tan hua)) ((wei yang) OR (wei wang)) 3.2 longer a ;*.