Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"do tan duoc snippets" » "do tao duoc snippets", "do tran duc snippets", "do da duoc snippets", "do tuan duoc snippets", "do tang duoc snippets", "doi tan duoc snippets", "do tan duoc 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.

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