Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan toan can snippets" » "dan toan code snippets", "van toan can snippets", "dan than can snippets", "manh toan can snippets", "dan toan ban snippets", "dan toan cao snippets", "dan toan cau snippets"
"python using java snippets" » "python using data 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 toan 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 toan can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan toan can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan toan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.