Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hien cac do snippets" » "thien cac do snippets", "vien cac do snippets", "hieu cac do snippets", "hien cac don snippets", "hien cac doi snippets", "hien cac du 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: (((("hien cac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hien cac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hien cac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hien cac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.