Perhaps you should try some spelling variations:
"dung quan pham snippets" » "dung quang pham snippets", "dung luan pham snippets", "luong quan pham snippets", "dung tuan pham snippets", "dung quan phap snippets", "dung quang phat snippets", "dung quan pham slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 quan pham snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quan pham snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quan pham snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quan pham snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.