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