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