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