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