Perhaps you should try some spelling variations:
road making » road marking, road markings, road mapping
making saur » making sure, making safe, making secure
chen dung » chen chung, chen yang, chen ping
liang tan » liang dan, liang sun, wing tan
chen rong » chen yang
yang jui » yang judy, yang di, yang xi
qian » ian, kian, jian

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: ((qian jun) OR (liang tan)) yang jui ((chen dung) OR (chen rong)) road making saur ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((qian jun) or (liang tan)) yang jui ((chen dung) OR (chen rong)) road making saur ;~".
• Adding a wildcard symbol may retrieve word variants: ((qian jun) or (liang tan)) yang jui ((chen dung) OR (chen rong)) road making saur ;*.