Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"xac thu canh snippets" » "xac thu code snippets", "xac thuc hanh snippets", "xac thu cong snippets", "xac thu ban snippets", "cac thu canh snippets", "xuan thu canh snippets", "sach thu canh 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: (((("xac thu canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xac thu canh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( xac thu canh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac thu canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.