Perhaps you should try some spelling variations:
"dung thoi doai snippets" » "dung thi doai snippets", "dung toi doai snippets", "dung thuoc doai snippets", "dung thoi dai snippets", "dung hoi doai snippets", "dung thai doan snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "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: (((("dung thoi doai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thoi doai snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung thoi doai snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thoi doai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.