Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"que quang su snippets" » "hue quang su snippets", "qua quang su snippets", "quan quang su snippets", "que quan su snippets", "que quang cu snippets", "que quang si snippets", "que quang su slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("que quang su snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("que quang su snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( que quang su snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("que quang su snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.