Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"pha cac che snippets" » "phan cac che snippets", "phap cac che snippets", "pha cau che snippets", "pha cac he snippets", "pha cac chien snippets", "pha cac chat 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: (((("pha cac che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha cac che snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha cac che snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha cac che snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.