Perhaps you should try some spelling variations:
exchange robert » change robert, change roberto, exchange reserve
new nation » new national, new action
wang liang » wang yang
new anion » new union, new action, new asian
tan yong » tan hong, tan kong, tan yang
robert e » robert _, robert j
a times » _ times, a time, bad times

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tan yong) or (wang liang)) a times ((new anion) OR (new nation)) exchange robert e ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tan yong) OR (wang liang)) a times ((new anion) OR (new nation)) exchange robert e ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tan yong) or (wang liang)) a times ((new anion) OR (new nation)) exchange robert e ;*".