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