Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan my doc snippets" » "nhan y doc snippets", "nhan ky doc snippets", "nhan my duoc snippets", "nhan me doc snippets", "nhan my doi 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: (((("nhan my doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan my doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan my doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan my doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.