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