Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tich so can snippets" » "tich bao can snippets", "tinh son can snippets", "tich so cap snippets", "tich so dan snippets", "tich su can 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: (((("tich so 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: (((("tich so can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich so can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich so can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.