Perhaps you should try some spelling variations:
china's roads » china's road, china's inroads, china's roles
roads during » records during, spreads during, dreams during
during john » dunning john, bowring john
hong jong » hong kong
gong meng » gong gang, gong min
jong min » gong min, song min, song ming

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((dong or long) sin) or (hong jong)) did china's roads during john ((jong min) or (gong meng)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((dong OR long) sin) OR (hong jong)) did china's roads during john ((jong min) OR (gong meng)) ;.
• Adding a wildcard symbol may retrieve word variants: (((dong or long) sin) or (hong jong)) did china's roads during john ((jong min) or (gong meng)) ;*.