Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat cua tre snippets" » "nhat cua tre snippets", "chat cua tre snippets", "hai cua tre snippets", "phat cua te snippets", "phat cuu tre snippets", "phat 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: (((("phat 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: (((("phat cua tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat cua tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.