Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va nghi doc snippets" » "va nghi don snippets", "va nghia duoc snippets", "va nghi cuoc snippets", "ca nghi doc snippets", "va nghien doc snippets", "va nguoi 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: (((("va nghi 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: (((("va nghi doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va nghi doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va nghi doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.