Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan doan di snippets" » "chan doan di snippets", "phan hoan di snippets", "chuan doan di snippets", "phan doan vi snippets", "phan doan do snippets", "phan doan dieu 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: (((("phan doan di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan doan di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan doan di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan doan di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.