Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc van don snippets" » "truc va don snippets", "thuc van don snippets", "truc ban don snippets", "truc van dong snippets", "truc van doan 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 don 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 don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc van don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc van don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.