Perhaps you should try some spelling variations:
"dung quang code snippets" » "dang quang code snippets", "luong quang code snippets", "dung luan code snippets", "dung quang de snippets", "dung quang code slippers"
"trinh vat data snippets" » "trinh van data snippets", "trinh luat data snippets", "sinh vat data snippets", "trinh fast data snippets", "trinh a data snippets", "trinh tat dat snippets", "trinh vat data 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: (((("trinh vat data snippets") or ("dung quang code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh vat data snippets") OR ("dung quang code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh vat data snippets ) or ( dung quang code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh vat data snippets") or ("dung quang code snippets"))) or ("locating bug code snippets"))*.