Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan ban can snippets" » "luan van can snippets", "luan san can snippets", "luan han can snippets", "luan ban dan snippets", "luan ban hang snippets", "luan ban hanh 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: (((("luan ban can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan ban can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan ban can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan ban can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.