Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toan du vi snippets" » "tran duc vi snippets", "toan cau vi snippets", "toan du ki snippets", "toan du va snippets", "toan su vi snippets", "toan du vi slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("toan du vi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan du vi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan du vi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan du vi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.