Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"luong ca cham snippets" » "luong cac cham snippets", "luong cua cham snippets", "luong cao cham snippets", "luong cau cham snippets", "luong va cham snippets", "luong co cham 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 ca cham 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 ca cham snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong ca cham snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong ca cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.