Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than luc cau snippets" » "nhan luc cau snippets", "than duc cau snippets", "thanh luu cau snippets", "than lua cau snippets", "than luc cao snippets", "than luc canh 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: (((("than luc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than luc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than luc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than luc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.