Perhaps you should try some spelling variations:
"nhung tri lang snippets" » "nhung bai lang snippets", "nhung bi lang snippets", "nhung gi lang snippets", "nhung tai lang snippets", "nhung tri bang snippets", "nhung tri mang snippets", "nhung tri lang 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 lang 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 lang snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung tri lang snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tri lang snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.