Perhaps you should try some spelling variations:
wang sampling » ring sampling, plant sampling, a sampling
sampling data » sample data
german gender » german lander, germany under, german border
data german » dutch german
gender tang » gender tag, gender talk, gender task
hong hong » hong kong, hong jong, hong ng
tang min » chang min, sang minh, yang mind
hong g » hong ng, hong w, hong 7

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 german gender tang min ((hong g) or (hong hong)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang sampling data german gender tang min ((hong g) OR (hong hong)) ;.
• Adding a wildcard symbol may retrieve word variants: wang sampling data german gender tang min ((hong g) or (hong hong)) ;*.