Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"huu toan cho snippets" » "huu toan code snippets", "huu tuan cho snippets", "cuu toan cho snippets", "huy toan cho snippets", "huu toan cao snippets", "huu toan chi snippets", "huu toan ho 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: (((("huu toan cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu toan cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( huu toan cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu toan cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.