Perhaps you should try some spelling variations:
"xuan minh data snippets" » "xuan dinh data snippets", "xuan kinh data snippets", "quang minh data snippets", "xuan minh danh snippets", "xuan dinh dat snippets", "xuan minh dao snippets", "xuan minh 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: (((("xuan minh 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: (((("xuan minh data snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuan minh data snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuan minh data snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.