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