Perhaps you should try some spelling variations:
luong thanh » long thanh, truong thanh
jane cheng » tan cheng
zhang king » zhang ming, zhang jing, zhang ping
kong thanh » long thanh, kong hang, truong thanh
jane chen » jean chen, jie chen, kang chen
han zhang » han chang, hao zhang, yan zhang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ian milligan ((jane cheng) OR (jane chen)) han zhang king ((kong thanh) or (luong thanh)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ian milligan ((jane cheng) OR (jane chen)) han zhang king ((kong thanh) OR (luong thanh)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ian milligan ((jane cheng) OR (jane chen)) han zhang king ((kong thanh) or (luong thanh)) ;".
• Adding a wildcard symbol may retrieve word variants: ian milligan ((jane cheng) OR (jane chen)) han zhang king ((kong thanh) or (luong thanh)) ;*.