Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bien tinh do snippets" » "bi tinh do snippets", "yen tinh do snippets", "diep tinh do snippets", "bien trinh do snippets", "bien tinh doi snippets", "bien tinh da 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: (((("bien tinh 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: (((("bien tinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bien tinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bien tinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.