Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long tom cho snippets" » "lon tom cho snippets", "long term cho snippets", "long tong cho snippets", "long ton cho snippets", "long toan cho snippets", "long tom chua 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: (((("long tom cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long tom cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long tom cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long tom cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.