Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro gian voi snippets" » "thoi gian voi snippets", "tran gian voi snippets", "ro giai voi snippets", "tro gian hoi snippets", "tro gian ve snippets", "tro dien voi 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: (((("tro gian voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro gian voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro gian voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro gian voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.