Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"n2 doc deu snippets" » "n2 doi deu snippets", "n2 doc hieu snippets", "n2 hoc dieu snippets", "n1 doc deu snippets", "n3 doc deu snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("n2 doc deu snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( n2 doc deu snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("n2 doc deu snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.