Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"van than java snippets" » "van think java snippets", "van than va snippets", "van thanh java snippets", "van thang java snippets", "van tuan java snippets", "van than java slippers"
"dung vbug code snippets" » "dung vung code snippets", "dung bug code snippets", "dung vbug code slippers"

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: (((("van than java snippets") or ("dung vbug code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van than java snippets") OR ("dung vbug code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( van than java snippets ) or ( dung vbug code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van than java snippets") or ("dung vbug code snippets"))) or ("locating bugs code snippets"))*.