Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hien cau cu snippets" » "khien cau cu snippets", "thien cau cu snippets", "hien cac cu snippets", "hien cau cua snippets", "hien cau chu snippets", "hien cau tu 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 cau cu 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 cau cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hien cau cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hien cau cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.