Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc canh da snippets" » "luc canh da snippets", "luoc can da snippets", "luoc danh da snippets", "luoc canh dan snippets", "luoc canh va 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: (((("luoc canh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luoc canh da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc canh da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc canh da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.