Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc doi ve snippets" » "cuoc doi ve snippets", "luoc dai ve snippets", "hoc doi ve snippets", "luoc moi ve snippets", "luoc doi va snippets", "luoc noi 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: (((("luoc doi 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: (((("luoc doi ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc doi ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc doi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.