Perhaps you should try some spelling variations:
rural teachers » regular teachers
teachers flow » teachers from, teachers how, teachers know
money rural » money moral, monde rural
than money » than one
liang tan » liang dan, liang sun
wing tan » wing ian, hong tan, tin tan
liang li » ling li, qiang li, liang wei
wong yue » wang yue, hong yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wing tan) OR (liang tan)) than money rural teachers flow ((liang li) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wing tan) OR (liang tan)) than money rural teachers flow ((liang li) OR (wong yue)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing tan) OR (liang tan)) than money rural teachers flow ((liang li) or (wong yue)) ;*".