Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nham nang du snippets" » "phap nang du snippets", "cam nang du snippets", "kha nang du snippets", "nham nang tu snippets", "nham nang luc snippets", "nham nang doc 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: (((("nham nang 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: (((("nham nang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nham nang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nham nang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.