Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong vat do snippets" » "luong va do snippets", "luong van do snippets", "luong tai do snippets", "luong vat doi snippets", "luong vat co snippets", "luong vat da 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 do 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 do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong vat do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong vat do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.