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