Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan bo chi snippets" » "doan do chi snippets", "doan o chi snippets", "doanh bao chi snippets", "doan bao chi snippets", "doan ho chi snippets", "doan bo cai 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: (((("doan bo chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan bo chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan bo chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan bo chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.