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