Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam cho loc snippets" » "nam chon loc snippets", "nam chi loc snippets", "nam cao loc snippets", "nam cho hoc snippets", "nam cho lon 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 cho loc 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 cho loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam cho loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam cho loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.