Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long doan ho snippets" » "cong doan ho snippets", "dong doanh ho snippets", "rong doanh ho snippets", "long toan ho snippets", "long doan do snippets", "long doan o 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 doan ho 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 doan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long doan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long doan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.