Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"de luan doi snippets" » "de quan doi snippets", "de lua doi snippets", "de luan gioi snippets", "te luan doi snippets", "du luan doi snippets"
"locating bug code snippets" » "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: (((("de luan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( de luan doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("de luan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.