Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat dung cua snippets" » "tac dung cua snippets", "tan dung cua snippets", "vat dung cua snippets", "tat dung luan snippets", "tat dung cho 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: (((("tat dung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tat dung cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat dung cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat dung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.