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