Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong gia cua snippets" » "cong giao cua snippets", "ong gia cua snippets", "chong gian cua snippets", "cong gian cua snippets", "cong giau cua snippets", "cong gia cuc 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: (((("cong gia 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: (((("cong gia cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong gia cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong gia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.