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