Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai tang doi snippets" » "ba tang doi snippets", "bai giang doi snippets", "bai trong doi snippets", "bai hang doi snippets", "bai tang loi snippets", "bai tang di 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: (((("bai tang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bai tang doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai tang doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai tang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.