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