Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lenh lai cua snippets" » "benh lao cua snippets", "benh lau cua snippets", "benh li cua snippets", "lenh dai cua snippets", "lenh hai cua snippets", "lenh lai chau 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: (((("lenh lai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lenh lai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lenh lai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lenh lai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.