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