Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang quanh cac snippets" » "dang quanh code snippets", "dang quang cac snippets", "nang quan cac snippets", "dung quang cac snippets", "dang quang cao snippets", "dang qua cac snippets", "dang quan cau snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("dang quanh cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dang quanh cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dang quanh cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dang quanh cac snippets"))) or ("locating bug core snippets"))*.