Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vat cho can snippets" » "vat co can snippets", "van cho can snippets", "dat cho can snippets", "vat cho cac snippets", "vat cho phan snippets", "vat cho cong 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: (((("vat cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat cho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.