Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc gia do snippets" » "duc gia do snippets", "toc gia do snippets", "hoc gia do snippets", "doc gia dao snippets", "doc gia doi snippets", "doc giac 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: (((("doc gia 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: (((("doc gia do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc gia do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc gia do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.