Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan hanh du snippets" » "toan thanh du snippets", "toan anh du snippets", "tran hanh du snippets", "toan hanh dua snippets", "toan hanh tu snippets", "toan hanh de 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 hanh du 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 hanh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan hanh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan hanh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.