Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang han le snippets" » "nang phan le snippets", "nang hang le snippets", "nang hanh le snippets", "nang han lee snippets", "nang han lew 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: (((("nang han le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang han le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang han le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang han le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.