Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra binh con snippets" » "tran binh con snippets", "tra linh con snippets", "tra vinh con snippets", "tra sinh con snippets", "tra binh cuong snippets", "tra dinh chon 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: (((("tra binh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra binh con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra binh con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra binh con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.