Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son luon ve snippets" » "son duong ve snippets", "von luan ve snippets", "son con ve snippets", "son luan ve snippets", "son lon ve snippets", "son luoc ve 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: (((("son luon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son luon ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son luon ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son luon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.