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