Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan kim can snippets" » "chan im can snippets", "phan kim can snippets", "phan kiem can snippets", "chan ki can snippets", "chan kim ngan snippets", "chan kim bang 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: (((("chan kim 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: (((("chan kim can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan kim can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan kim can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.