Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tran hoc dat slippers" » "toan hoc dat slippers", "than hoc dat slippers", "trac hoc dat slippers", "tran hoc dan slippers", "tran hoc dai slippers", "tran hoc phat slippers", "tran hoc dat slippery", "tran hoc 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: (((("tran hoc 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: (((("tran hoc dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran hoc dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hoc dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.