Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh ta son snippets" » "anh tu son snippets", "anh va son snippets", "anh tuan son snippets", "anh tay son snippets", "anh ta song snippets", "anh tan 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: (((("anh ta 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: (((("anh ta son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh ta son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh ta son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.