Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hao van tan snippets" » "dao van tan snippets", "ho van tan snippets", "cao van tan snippets", "hao van tuan snippets", "hao van ban snippets", "hao van tai 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: (((("hao van tan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( hao van tan snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hao van tan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.