Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu nu doc snippets" » "tieu nhu doc snippets", "tieu su doc snippets", "tieu thu doc snippets", "tieu n1 doc snippets", "tieu n2 doc snippets", "tieu n3 doc 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: (((("tieu nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu nu doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu nu doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.