Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han che tre snippets" » "han cho tre snippets", "han khoe tre snippets", "han choi tre snippets", "phan che tre snippets", "nhan che tre snippets", "hanh che tre 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: (((("han che 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: (((("han che tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han che tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han che tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.