Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan viet can snippets" » "dan viet code snippets", "danh viet can snippets", "san viet can snippets", "dao viet can snippets", "dan viet van snippets", "dan viet ca snippets", "dan vien can snippets"
"python using java snippets" » "python using data snippets"

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

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