Perhaps you should try some spelling variations:
lanka 1.5 » lanka 11.1, lanka 1995, lanka 3.1
yang yang » wang yang, wang yan
dong nan » dong yang, dong sin, dong bin
1.5 when » 1.5 what, 1.5 why
yang jui » yang judy, yang xi
when so » when do, when co, when soft
so ging » so fing
yang yi » yang xi

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "dong nan lanka 1.5 when so ging ((((yang yang) OR (yang yi))) OR (((yang jui) OR (yang di)))) ;~".
• Adding a wildcard symbol may retrieve word variants: dong nan lanka 1.5 when so ging ((((yang yang) OR (yang yi))) OR (((yang jui) OR (yang di)))) ;*.