Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hoc chi trac slippers" » "hoc thi trac slippers", "hoc chiu trach slippers", "hoc hoi trac slippers", "hoc chia trac slippers", "hoc cho trac slippers", "hoc chu trac slippers", "hoc chi trac slippery", "hoc chi trac 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: (((("hoc chi trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc chi trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chi trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chi trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.