Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tre dang cu snippets" » "tre dan cu snippets", "tre lang cu snippets", "tran dang cu snippets", "tre dang su snippets", "tre dung cu 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: (((("tre dang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tre dang cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tre dang cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tre dang cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.