Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh dao den snippets" » "lanh dao den snippets", "thanh dat den snippets", "thanh dam den snippets", "hanh dao dan snippets", "hanh dan den snippets", "hanh day den 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 dao den 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 dao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh dao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.