Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"luong do cac snippets" » "luong dao cac snippets", "cuong do cac snippets", "luong du cac snippets", "luong o cac snippets", "luong co cac snippets", "luong do cao 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: (((("luong do cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong do cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong do cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong do cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.