Perhaps you should try some spelling variations:
"duong java java snippets" » "duong va java snippets", "duong java java slippers"
"nang ma code snippets" » "tang ma code snippets", "sang ma code snippets", "nang cao code snippets", "nang ma code slippers", "nang ma core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("duong java java snippets") or ("nang ma code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong java java snippets") OR ("nang ma code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong java java snippets ) or ( nang ma code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong java java snippets") or ("nang ma code snippets"))) or ("locating bug code snippets"))*.