Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ha manh de snippets" » "ho manh de snippets", "ha anh de snippets", "ha thanh de snippets", "ha hanh de snippets", "ha manh le snippets", "ha menh de 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: (((("ha manh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ha manh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ha manh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ha manh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.