Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"long van cham snippets" » "long van code snippets", "luong van cham snippets", "song van cham snippets", "lang van cham snippets", "long van chat snippets", "long van tham snippets", "long va cham 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 ("long van cham snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("long van cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( long van cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("long van cham snippets"))) or ("locating bug core snippets"))*.