Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van duc tap snippets" » "van duy tap snippets", "van du tap snippets", "tran duc tap snippets", "van duoc tap snippets", "van duc tan snippets", "van tuc tap snippets", "van duc tap 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: (((("van duc tap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( van duc tap snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van duc tap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.