Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang su de snippets" » "dang su de snippets", "nang du de snippets", "nang tu de snippets", "nang sau de snippets", "nang shu de snippets", "nang su det 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: (((("nang su de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang su de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang su de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang su de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.