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 thi snippets" » "dao van thi snippets", "ho van thi snippets", "cao van thi snippets", "hao van tai snippets", "hao dan thi snippets", "hao van thu 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 thi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( hao van thi snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hao van thi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.