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