Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ly tuan do snippets" » "ly luan do snippets", "le tuan do snippets", "ly quan do snippets", "ly toan do snippets", "ly truan doi snippets", "ly quan doi 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: (((("ly tuan 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: (((("ly tuan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ly tuan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ly tuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.