Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao dan che snippets" » "dao dan che snippets", "hao van che snippets", "hat dan che snippets", "hao han che snippets", "hao dan cho snippets", "hao dan he 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: (((("hao dan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao dan che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao dan che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao dan che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.