Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh tru du snippets" » "hanh tu du snippets", "hinh tru du snippets", "thanh tra du snippets", "hanh truc du snippets", "hanh tru su 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 tru du 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 tru du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh tru du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh tru du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.