Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hien cac le snippets" » "thien cac le snippets", "vien cac le snippets", "hieu cac le snippets", "hien cach le snippets", "hien cac he snippets", "hien mac le 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 le 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 le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hien cac le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hien cac le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.