Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam hanh de snippets" » "nam thanh de snippets", "nam khanh de snippets", "nam nhanh de snippets", "nam hanh ve snippets", "nam hanh kem 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: (((("nam hanh 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: (((("nam hanh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam hanh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam hanh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.