Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao dan bo snippets" » "dao dan bo snippets", "hao van bo snippets", "hat dan bo snippets", "hao dan bao snippets", "hao dan bon snippets", "hao can bo 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 bo 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 bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao dan bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao dan bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.