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