Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat do ve snippets" » "nhat so ve snippets", "nhat de ve snippets", "hat do ve snippets", "nhat dao ve snippets", "nhat do ke 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: (((("nhat do 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: (((("nhat do ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat do ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat do ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.