Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong iso do snippets" » "luong giao do snippets", "luong dao do snippets", "luong cho do snippets", "luong so do snippets", "luong riso don 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: (((("luong iso 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: (((("luong iso do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong iso do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong iso do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.