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