Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tuan ran cau snippets" » "tuan hoan cau snippets", "tuan bang cau snippets", "tuan dang cau snippets", "tuan van cau snippets", "tuan ban cau snippets", "tuan can cau 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: (((("tuan ran cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuan ran cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuan ran cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuan ran cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.