Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong cac di snippets" » "luong cuoc di snippets", "luong va di snippets", "luong tai di snippets", "luong cac dai snippets", "luong cac dia snippets", "luong cac doi 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 cac di 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 cac di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong cac di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong cac di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.