Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh kiem da snippets" » "khanh kiem da snippets", "hanh kem da snippets", "anh kiem da snippets", "hanh kiem va snippets", "hanh kiem tra snippets", "hanh kiem lam 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: (((("hanh kiem da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh kiem da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh kiem da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh kiem da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.