Perhaps you should try some spelling variations:
can change » urban change
work wong » work among, work work, kwok wong
work long » work longer, work among, work land
nan yan » nan ya, wang yan, qian yan
yan tan » tan tan, yan clan, yan guan
tan hua » tuan hua, wang hua, tan chia
hua can » hua ban, arua can, hua chen

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "nan yan tan hua can change ((work wong) OR (work long)) yue ;~".
• Adding a wildcard symbol may retrieve word variants: nan yan tan hua can change ((work wong) OR (work long)) yue ;*.