Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phu hoi cao snippets" » "phu hoi code snippets", "phuc hoi cao snippets", "phu doi cao snippets", "thu hoi cao snippets", "phu hoc cao snippets", "phu hoi co snippets", "phu hoi cho 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: (((("phu hoi cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu hoi cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phu hoi cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu hoi cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.