Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"nang su trinh slippers" » "nang su tinh slippers", "nang qua trinh slippers", "nang quy trinh slippers", "dang su trinh slippers", "nang du trinh slippers", "nang tu trinh slippers", "nang su trinh slippery", "nang su 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: (((("nang su trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang su trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang su trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang su trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.