Perhaps you should try some spelling variations:
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
land mine » land mines, land eine, land wine
tong shui » tong hui, cong shu
gong hui » tong hui, wang hui, gong si
ying di » yang di, ying jin
di li » li li

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 ying di li ((land mine) OR (tuan minh)) ((tong shui) OR (gong hui)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang ying di li ((land mine) or (tuan minh)) ((tong shui) or (gong hui)) ;*.