Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huong su can snippets" » "thuong su can snippets", "huong tu can snippets", "luong su can snippets", "huong su van snippets", "huong su cao snippets", "huong su han 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: (((("huong su 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: (((("huong su can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huong su can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.