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