Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi cua tre snippets" » "hoi cua tre snippets", "doi cua tre snippets", "moi quan tre snippets", "moi cua te snippets", "moi cuu tre snippets", "moi cua triet 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: (((("moi cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi cua tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi cua tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.