Perhaps you should try some spelling variations:
"luong thiet cua snippets" » "luong thien cua snippets", "luong tiet cua snippets", "tuong thiet cua snippets", "luong nhiet cua snippets", "luong thieu cua snippets", "luong thit cua snippets"
"dung java java snippets" » "dung va java 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 thiet cua 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 thiet cua snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong thiet cua snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong thiet cua snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.