Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan vung ho snippets" » "dan dung ho snippets", "dao vung ho snippets", "dang hung ho snippets", "dan vung hoc snippets", "dan vung cho snippets", "dan vung kho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan vung ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan vung ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan vung ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan vung ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.