Perhaps you should try some spelling variations:
douglas john » douglas jones, douglas j, drugs john
things zeng » things zhang, things end, things using
wang yang » wang yan, wang liang, wang yanling
douglas b » douglas f, douglas w, douglas a
douglas o » douglas f, douglas w, douglas a
yang lin » yang jin, wang lin, yang li
li smart » la smart, live smart, die smart
lin li » ling li, lin yi, yin li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang lin li smart things zeng ((douglas b) or (((douglas john) or (douglas o)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang lin li smart things zeng ((douglas b) OR (((douglas john) OR (douglas o)))) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang lin li smart things zeng ((douglas b) or (((douglas john) or (douglas o)))) ;*.