Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc van da snippets" » "truc va da snippets", "thuc van da snippets", "truc ban da snippets", "truc van dao snippets", "truc van dau snippets", "truc van dan 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: (((("truc van da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truc van da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc van da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc van da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.