Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bang anh doc snippets" » "ban anh doc snippets", "bang thanh doc snippets", "hoang anh doc snippets", "bang anh duc snippets", "bang anh hoc snippets", "bang nang doc 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: (((("bang anh 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: (((("bang anh doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bang anh doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bang anh doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.