Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang tu can snippets" » "hoang tu can snippets", "thang tu can snippets", "hanh tu can snippets", "hang tu ban snippets", "hang tu cac snippets", "hang su can 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: (((("hang tu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang tu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang tu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang tu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.