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