Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dang vat hon snippets" » "dang vat code snippets", "dang van hon snippets", "dong vat hon snippets", "dang nhat hon snippets", "dang vat hoc snippets", "dang vat con snippets", "dang vat khong 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: (((("dang vat hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang vat hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang vat hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang vat hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.