Perhaps you should try some spelling variations:
changes jin » changes big, changes can, changes git
changes did » change did, changes due, changes big
3.1 detect » 3.1 direct, 3.1 detection, 3.1 detecting
lanka 3.1 » lanka 9.1, lanka 11.1, lankas 3.4
lang yan » wang yan, wang yang, zhang yan
song von » doing von, song jin, song min

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: "lang yan lanka 3.1 detect ((changes jin) OR (changes did)) song von ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan lanka 3.1 detect ((changes jin) OR (changes did)) song von ;*.