Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung cu trinh slippers" » "dung co trinh slippers", "dung qua trinh slippers", "dung quy trinh slippers", "dung cua trinh slippers", "dung cho trinh slippers", "dung cu trinh slippery", "dung cu trinh 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 cu trinh 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 cu trinh slippers") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cu trinh slippers ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cu trinh slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))*.