Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hieu he can snippets" » "hieu he code snippets", "hieu ve can snippets", "hiem he can snippets", "hieu le can snippets", "hieu he dan snippets", "hieu he van snippets", "hieu he cac 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 he 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 he can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hieu he can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu he can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.