Perhaps you should try some spelling variations:
"dung using data snippets" » "dung ung data snippets", "dung sinh data snippets", "dung uong data snippets", "dung using java snippets", "dung using sat snippets", "dung missing data snippets", "dung using data slippers"
"duong van code snippets" » "duong va code snippets", "luong va code snippets", "dang van code snippets", "duong van de snippets", "duong van hoe snippets", "duong van cong snippets", "duong van code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 using data snippets") or ("duong van code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung using data snippets") OR ("duong van code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung using data snippets ) or ( duong van code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung using data snippets") or ("duong van code snippets"))) or ("locating bug code snippets"))*.