Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xuat dat tre snippets" » "luat dat tre snippets", "tuat dat tre snippets", "xuat vat tre snippets", "xuat dat tren snippets", "xuat dat tieu snippets", "xuat dat theo 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: (((("xuat dat 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: (((("xuat dat tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xuat dat tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xuat dat tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.