Perhaps you should try some spelling variations:
"luong cac lich snippets" » "luong cuoc lich snippets", "luong va lich snippets", "luong tai lich snippets", "luong vat lich snippets", "luong cac tinh snippets", "luong hoc lich snippets", "luong cac lich slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 cac lich 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 cac lich snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong cac lich snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong cac lich snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.