Perhaps you should try some spelling variations:
liang dan » liang tan, king dan, liang sun
lanka how » land how, lane how, lanka p.w
yeo chang » ceo zhang, lee chang, po chang
chang xin » zhang xin, chang min, chang ann
congo can » congo call, congo a, congo war
cong van » duong van, cong sun
how yeo » how ceos
hong » long
tan » than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((liang dan) OR (hong tan)) lanka how yeo chang xin ((cong van) OR (congo can)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((liang dan) or (hong tan)) lanka how yeo chang xin ((cong van) OR (congo can)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((liang dan) or (hong tan)) lanka how yeo chang xin ((cong van) OR (congo can)) ;*.