Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua duoc cao snippets" » "qua buoc cao snippets", "cua duoc cao snippets", "luat duoc cao snippets", "qua duoc co snippets", "qua duoc cac snippets", "qua doc cao 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: (((("qua duoc 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: (((("qua duoc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua duoc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua duoc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.