Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"viet dat ca snippets" » "viet dat code snippets", "viec dat ca snippets", "viet da ca snippets", "viet dao ca snippets", "viet dat cau snippets", "viet dat cua snippets", "viet dat va 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: (((("viet dat ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet dat ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( viet dat ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet dat ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.