Perhaps you should try some spelling variations:
labor working » labor earning, about working, labor during
working poor » working paper, working hours
wang yang » wang yan, wang yanling
poor dong » poor doing, poor don't, poor does
dong ping » dong sin, dong bin, dong jung
ii labor » ii labour, iii labor, ii libor

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((wang liang) OR (wang yang)) ii labor working poor dong ping ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((wang liang) OR (wang yang)) ii labor working poor dong ping ;*".