Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoi han cua snippets" » "hoi han code snippets", "hoi phan cua snippets", "hoi dan cua snippets", "hoa han cua snippets", "hoi hang cua snippets", "hoi nhan cua snippets", "hoi than cua 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: (((("hoi han cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi han cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoi han cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi han cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.