Perhaps you should try some spelling variations:
"dat nhanh cay snippets" » "dat khanh cay snippets", "dat thanh cay snippets", "day nhanh cay snippets", "dat nhanh ha snippets", "dat nhanh bac snippets", "dat nhanh va snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dat nhanh cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat nhanh cay snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat nhanh cay snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat nhanh cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.