Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat cho den snippets" » "chat cho den snippets", "nhat co den snippets", "nhat nheo den snippets", "nhat cho dong snippets", "nhat cham den snippets", "nhat chen den 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: (((("nhat cho 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: (((("nhat cho den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat cho den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat cho den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.