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