Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han tap phe snippets" » "han tai phe snippets", "toan tap phe snippets", "nhan tai phe snippets", "han lap phe snippets", "han tap pham snippets", "han thap phu 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: (((("han tap 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: (((("han tap phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han tap phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han tap phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.