Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trang de cua snippets" » "trang do cua snippets", "trang du cua snippets", "trang ke cua snippets", "trang le cua snippets", "trang te cua snippets", "trang dieu 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: (((("trang de 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: (((("trang de cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trang de cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trang de cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.