Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc nung du snippets" » "toc muong du snippets", "hoc ung du snippets", "hoc dung du snippets", "toc nang du snippets", "toc dung du snippets", "toc nung xu 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: (((("toc nung 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: (((("toc nung du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc nung du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc nung du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.