Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc khac do snippets" » "ngoc phac do snippets", "ngo khac do snippets", "ngoc khanh do snippets", "ngoc khac 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: (((("ngoc khac 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: (((("ngoc khac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc khac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc khac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.