Perhaps you should try some spelling variations:
detect changes » detecting changes, recent changes
3.1 detect » 3.1 direct, 3.1 detection, 3.1 detecting
lanka 3.1 » lanka 9.1, lanka 11.1, lankas 3.4
john song » john wong, john bonn, john ngosong
jin song » jie song, kim song, jin ying
wang » wing, wan, lang
yan » yang, ryan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan lanka 3.1 detect changes ((jin song) OR (john song)) von ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan lanka 3.1 detect changes ((jin song) OR (john song)) von ;".
• Adding a wildcard symbol may retrieve word variants: wang yan lanka 3.1 detect changes ((jin song) OR (john song)) von ;*.