Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong vat ve snippets" » "luong va ve snippets", "luong van ve snippets", "luong tai ve snippets", "luong vat va snippets", "luong vat de snippets", "luong mat ve 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: (((("luong vat ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong vat ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong vat ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong vat ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.