Perhaps you should try some spelling variations:
"dung quang data snippets" » "dang quang data snippets", "luong quang data snippets", "dung luan data snippets", "dung quang dai snippets", "dung quang dam snippets", "dung quang dang snippets"
"dung hung code slippers" » "dung chung code slippers", "dung nhung code slippers", "dung huong code slippers"
"locating bug code snippets" » "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 quang data snippets") or ("dung hung code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quang data snippets") OR ("dung hung code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quang data snippets ) or ( dung hung code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quang data snippets") or ("dung hung code slippers"))) or ("locating bug code snippets"))*.