Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giao dan ve snippets" » "gian dan ve snippets", "giao dat ve snippets", "giao dien ve snippets", "giao ban ve snippets", "giao dan va snippets", "giao dan viet 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: (((("giao dan 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: (((("giao dan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giao dan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giao dan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.