Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan nha ve snippets" » "toa nha ve snippets", "toan khoa ve snippets", "toan chi ve snippets", "toan nhat ve snippets", "toan nhan ve snippets", "toan nha va 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: (((("toan nha 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: (((("toan nha ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan nha ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan nha ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.