Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tinh quang de snippets" » "tinh quang le snippets", "tinh quang d snippets", "tinh quang do snippets", "trinh quang de snippets", "dinh quang de snippets", "minh quang de snippets"
"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: (((("tinh quang de snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tinh quang de snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh quang de snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh quang de snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.