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