Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan den di snippets" » "nhan dien di snippets", "nhan dan di snippets", "nhan gen di snippets", "nhan den do snippets", "nhan ben di 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 den di 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 den di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan den di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan den di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.