Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dai van toan snippets" » "dai van code snippets", "dai van tuan snippets", "dai van tan snippets", "dai van thanh snippets", "dao van toan snippets", "dai han toan snippets", "dai va toan 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: (((("dai van toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai van toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dai van toan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai van toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.