Perhaps you should try some spelling variations:
wang sampling » ring sampling, plant sampling, a sampling
sampling data » sample data
sang minh » kang minah, anh minh, song min
song ming » song bing, song min, jong min
data hua » data hub, data human, data how
gong min » jong min, song min, gong meng
hong ghi » zhong zhi, hong g, hong hai
hua ren » hua chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang sampling data hua ren ((sang minh) or (((song ming) OR (gong min)))) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang sampling data hua ren ((sang minh) OR (((song ming) OR (gong min)))) hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang sampling data hua ren ((sang minh) or (((song ming) OR (gong min)))) hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: wang sampling data hua ren ((sang minh) or (((song ming) OR (gong min)))) hong ghi ;*.