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