Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngu su can snippets" » "ngu so can snippets", "ngu cu can snippets", "ngu tu can snippets", "ngu su van snippets", "ngu su cao snippets", "ngu su han 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: (((("ngu su 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: (((("ngu su can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu su can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.