Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"web dan dung snippets" » "web van dung snippets", "web tin dung snippets", "web ap dung snippets", "web ban dung snippets", "web da dung snippets", "web bang dung snippets", "web dan dung 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: (((("web dan dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("web dan dung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web dan dung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web dan dung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.