Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang vat cua snippets" » "dang van cua snippets", "dong vat cua snippets", "dang nhat cua snippets", "dang mat cua snippets", "dang bat cua snippets", "dang dat cua 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 cua 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 cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang vat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang vat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.