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