Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vu ngoi bo snippets" » "vu ngoai bo snippets", "vu ngoc bo snippets", "vu noi bo snippets", "vu nuoi bo snippets", "vu ngoai bao 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: (((("vu ngoi bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vu ngoi bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vu ngoi bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vu ngoi bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.