Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi cua can snippets" » "khoi cua code snippets", "hoi cua can snippets", "khi cua can snippets", "kho cua can snippets", "khoi cua cac snippets", "khoi cua ban snippets", "khoi cua dan 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: (((("khoi cua 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: (((("khoi cua can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi cua can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi cua can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.