Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc dan he snippets" » "thuc hanh he snippets", "hoc dan he snippets", "thuc vat he snippets", "thuc dan ve snippets", "thuc dan de snippets", "thuc dan ke 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: (((("thuc dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc dan he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc dan he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.