Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro moi den snippets" » "tho moi den snippets", "tri moi den snippets", "tro oi den snippets", "tro hoi den snippets", "tro moi dan snippets", "tro moi de 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: (((("tro moi 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: (((("tro moi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro moi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro moi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.