Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nho toi do snippets" » "nho tai do snippets", "cho tuoi do snippets", "tho thoi do snippets", "nho toi doi snippets", "nho toi da snippets", "nho toi di 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: (((("nho toi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nho toi do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nho toi do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nho toi do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.