Perhaps you should try some spelling variations:
"nhung tri dua snippets" » "nhung bai dua snippets", "nhung bi dua snippets", "nhung gi dua snippets", "nhung tri cua snippets", "nhung thi dua snippets", "nhung tri du snippets", "nhung tri dua 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: (((("nhung tri dua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung tri dua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung tri dua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tri dua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.