Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu anh toan snippets" » "khu manh toan snippets", "khu anh tuan snippets", "khu thanh toan snippets", "thu anh toan snippets", "thuy 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: (((("khu 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: (((("khu anh toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu anh toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu anh toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.