Perhaps you should try some spelling variations:
"nang java java snippets" » "nang va java snippets", "nang java java slippers"
"dung bai code snippets" » "dung tai code snippets", "dung sai code snippets", "dung hai code snippets", "dung bai con snippets", "dung bai code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("nang java java snippets") or ("dung bai code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang java java snippets") OR ("dung bai code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang java java snippets ) or ( dung bai code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang java java snippets") or ("dung bai code snippets"))) or ("locating bug code snippets"))*.