Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"qua trong tai snippets" » "quan trong tai snippets", "qua trinh tai snippets", "qua song tai snippets", "qua trong thai snippets", "qua truong tai snippets", "qua trong tan snippets"
"dung java java snippets" » "dung va java snippets"

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: "((((\"qua trong tai snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( qua trong tai snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("qua trong tai snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))*.