Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh danh cu snippets" » "anh anh cu snippets", "anh dang cu snippets", "anh dinh cu snippets", "anh danh cau snippets", "anh danh tu 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: (((("anh danh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh danh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh danh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh danh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.