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