Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang su cao snippets" » "dang su cao snippets", "nang su cao snippets", "bang su cao snippets", "hang cu cao snippets", "hang vu cao snippets", "hang su co 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 su cao 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 su cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang su cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.