Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duc toan cac snippets" » "duc toan code snippets", "duc tan cac snippets", "duc ton cac snippets", "duc hoan cac snippets", "duc toan cao snippets", "duc toan cau snippets", "duc toan xac 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: (((("duc toan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc toan cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duc toan cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc toan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.