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