Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan thi cua snippets" » "tran thi cua snippets", "toan tai cua snippets", "toan chi cua snippets", "toan thai cua snippets", "toan thi cuc snippets", "toan tri cua 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 thi cua 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 thi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan thi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan thi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.