Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu can doc snippets" » "tiep can doc snippets", "dieu can doc snippets", "tiem can doc snippets", "tieu nang doc snippets", "tieu than doc snippets", "tieu can dong 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: (((("tieu can doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu can doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu can doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu can doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.