Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"than ban cau snippets" » "thanh ban cau snippets", "toan ban cau snippets", "than man cau snippets", "than bang cau snippets", "than ban can snippets", "than van 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: (((("than ban 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: (((("than ban cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than ban cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than ban cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.