Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung ho du snippets" » "tuong ho du snippets", "trung hoc du snippets", "trung hoa du snippets", "tung ho duc snippets", "tung cho du snippets", "tung ho dua 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: (((("tung ho du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung ho du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung ho du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung ho du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.