Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian tang du snippets" » "gian lang du snippets", "gia tang du snippets", "gian trong du snippets", "gian nang du snippets", "gian hang dau snippets", "gian dang duc 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: (((("python using java snippets") or ("gian tang du snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("gian tang du snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( gian tang du snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("gian tang du snippets"))) or ("locating bug code snippets"))*.