Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua thuc cua snippets" » "qua phuc cua snippets", "qua tuc cua snippets", "rua thuc cua snippets", "qua hoc cua snippets", "qua thuc va 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: (((("qua thuc 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: (((("qua thuc cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua thuc cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua thuc cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.