Perhaps you should try some spelling variations:
"diem sinh data snippets" » "diep tinh data snippets", "kiem dinh data snippets", "dien hinh data snippets", "diem using data snippets", "diem sinh vat snippets", "diem dinh dat snippets", "diem sinh data slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("diem sinh data snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("diem sinh data snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diem sinh data snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diem sinh data snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.