Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi vat de snippets" » "thoi va de snippets", "thai vat de snippets", "thoai van de snippets", "thoi vat da snippets", "thoi vat dien 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: (((("thoi vat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoi vat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi vat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi vat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.