Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"has anh toan snippets" » "has manh toan snippets", "has anh tuan snippets", "has thanh toan snippets", "ha anh toan snippets", "hai anh toan snippets", "pham anh toan 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: (((("has anh toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("has anh toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( has anh toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("has anh toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.