Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"song cua da snippets" » "cong cua da snippets", "dong cua da snippets", "huong cua da snippets", "song cua dan snippets", "song cua dai snippets", "song cua dam 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: (((("song cua 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: (((("song cua da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( song cua da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("song cua da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.