Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong hat do snippets" » "luong chat do snippets", "luong ha do snippets", "luong vat do snippets", "luong hat doi snippets", "luong hat dao snippets", "luong hat 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: (((("luong hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong hat do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong hat do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong hat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.