Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"van duong code snippets" » "van duong co snippets", "van duong cong snippets", "van duong che snippets", "van dong code snippets", "van dung code snippets", "van phong code snippets", "van duong code slippers"
"dang java java snippets" » "dang va java snippets", "dang java java 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: (((("dang java java snippets") or ("van duong code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("van duong code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( van duong code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("van duong code snippets"))) or ("locating bugs code snippets"))*.