Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh hat le snippets" » "hanh cat le snippets", "hanh han le snippets", "thanh hai le snippets", "hanh nhat le snippets", "hanh hat de snippets", "hanh hat ke 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 hat le 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 hat le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh hat le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh hat le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.