Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc su da snippets" » "quoc suu da snippets", "luoc su da snippets", "duoc su da snippets", "quoc su dai snippets", "quoc su dan snippets", "quoc su dao 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: (((("quoc su da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc su da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc su da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc su da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.